{"title":"Sirris Suspension | E-Moto Fork \u0026 Shock Upgrades","description":"\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSirris Suspension | E-Moto Fork \u0026amp; Shock Upgrades\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eStock e-moto suspension was an afterthought. Sirris wasn't.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFounded in 2023 by engineers from Fox and Ohlins -- over 150 years of off-road suspension development between them -- Sirris builds forks and shocks designed from the ground up for electric dirt bikes. Not adapted from MTB. Not borrowed from gas dirtbikes. Purpose-built for the weight distribution, instant torque, and repeated-impact demands of e-motos.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe \u003cstrong\u003eF43 fork\u003c\/strong\u003e delivers 246mm of closed-cartridge travel on the Sur-Ron Ultra Bee, with fully tunable compression, rebound, and preload matched to your rider weight and riding style. Choose Trail, MX or CMX tunes. The \u003cstrong\u003eCMX F43\u003c\/strong\u003e brings the same race-proven chassis to e-motos -- Sur-Ron Light Bee X, Talaria MX5, E-Ride Pro SR, Ventus One+, and Zero XB -- in 220mm of travel with tool-free compression adjusters.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePair it with the \u003cstrong\u003eR46 rear shock\u003c\/strong\u003e -- pressure balanced, fully adjustable, with Dual Speed Compression (DSC) that isolates high-speed and low-speed circuits for precise control across any terrain.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBoth are plug-and-play direct bolt-on swaps. No machining. No fabrication. No extra parts.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSirris carries riders at the Red Bull TKO, the E-Moto World Championship at Glen Helen, the Biltwell 100, and the likes. Cam Zink. Jaxson Riddle. Reed Boggs. If you want to know whether this suspension works, look at who's winning.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eREV Rides is an authorized Sirris dealer. Every fork and shock ships tuned to your application.\u003c\/p\u003e","products":[{"product_id":"sirris-f43-cmx-220mm-fork-tool-free-lsc-zero-xb","title":"Sirris F43 CMX 220mm Fork | Tool free LSC | Zero XB","description":"\u003ch1\u003eSirris F43 CMX 220mm Tool-Free LSC Fork | By Sirris Suspension | For Zero XB\u003c\/h1\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eComing soon!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eBuilt to Dominate Any Terrain, Any Time\u003c\/h2\u003e\n\u003cp\u003eAt REV Rides we see a lot of riders pushing the \u003cstrong\u003eZero XB\u003c\/strong\u003e harder than its stock suspension was ever designed for. The \u003cstrong\u003eSirris F43 CMX Fork\u003c\/strong\u003e is one of the most serious upgrades you can install if you want to unlock the true performance potential of this platform. This fork brings full-size motocross suspension engineering to compact electric bikes, giving riders a front end that feels stronger, more precise, and far more capable in aggressive riding conditions.\u003c\/p\u003e\n\u003cp\u003eThe F43 CMX combines an oversized \u003cstrong\u003e43mm upside-down race chassis\u003c\/strong\u003e with Sirris’ proprietary \u003cstrong\u003eCMX tuned closed cartridge damping system\u003c\/strong\u003e. The result is razor sharp handling, incredible front-end confidence, and a suspension platform that stays consistent even when speeds pick up and terrain gets rough. With \u003cstrong\u003e220mm of travel\u003c\/strong\u003e, tool-free compression adjustment, and race-grade materials throughout the fork, this upgrade dramatically improves the ride quality and control of the Zero XB.\u003c\/p\u003e\n\u003cp\u003eSirris built the F43 platform by taking their race-proven fork architecture and resizing it for compact e-moto bikes. The \u003cstrong\u003e775mm extended chassis\u003c\/strong\u003e, oversized stanchions, and billet clamps create a longer, stiffer, and more planted front end while still keeping the bike responsive. The entire design focuses on reducing flex, improving durability, and delivering predictable performance when riders push these bikes harder on trails, jumps, and technical terrain.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/n4_QaBwQrRE?si=6srx8KQMC7FEOymB\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eOversized Chassis Designed to Outperform\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e43mm hard chrome stanchions\u003c\/strong\u003e resist flex, dents, and wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7XXX series hard anodized uppers\u003c\/strong\u003e maximize strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e775mm extended fork length\u003c\/strong\u003e creates a longer and more planted front end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm travel\u003c\/strong\u003e delivers 20mm more suspension travel than many stock compact e-moto forks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight billet aluminum clamps\u003c\/strong\u003e increase stiffness and reduce twisting under load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm fork spacing\u003c\/strong\u003e allows nearly unlimited tire choices for dirt or street setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect mount stem compatibility\u003c\/strong\u003e improves cockpit stiffness and steering feel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom ultra stiff chromoly axle\u003c\/strong\u003e improves steering precision and predictability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle style top cap system\u003c\/strong\u003e provides more consistent steering bearing tension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable brake caliper adapters and wheel spacers\u003c\/strong\u003e allow brake and wheel upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe result is a fork that is not just stiffer. It is stronger where it matters, absorbs impacts better, and maintains consistent performance during long aggressive rides.\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/y8ZjgHK3_Vc?si=3FkKGJa3XNa6oJMZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-block product-block--tab\"\u003e\n\u003cdiv class=\"collapsibles-wrapper collapsibles-wrapper--border-bottom\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRace Grade CMX Closed Cartridge Damping\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the F43 CMX is Sirris’ \u003cstrong\u003eCMX tuned symmetrical closed cartridge damper\u003c\/strong\u003e. This advanced system delivers professional level damping performance using independent oil circuits that separate lubrication and damping oil. This design keeps the fork running cool and consistent even when riding hard for extended sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMX Compact Motocross Tune\u003c\/strong\u003e designed for aggressive compact e-moto riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue symmetrical closed cartridge system\u003c\/strong\u003e provides fade-free damping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent oil circuits\u003c\/strong\u003e separate lubrication and damping oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow pistons\u003c\/strong\u003e with tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic bottom-out control\u003c\/strong\u003e protects against harsh impacts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard anodized internal components\u003c\/strong\u003e reduce wear and extend service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Daido bushings and NOK MX seals\u003c\/strong\u003e deliver smooth action and durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCMX tuning gives the Zero XB a planted, predictable ride feel that riders notice immediately. Whether riding technical trails or pushing faster off-road sections, the fork stays controlled and highly tunable.\u003c\/p\u003e\n\u003ch3\u003eTool-Free Compression Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe F43 CMX features \u003cstrong\u003etool-free compression adjusters\u003c\/strong\u003e, allowing quick suspension tuning without tools. Riders get nearly \u003cstrong\u003e30 clicks of external compression adjustment\u003c\/strong\u003e, making it easy to adapt the fork to different terrain or riding styles.\u003c\/p\u003e\n\u003ch3\u003eDirect Mount Stem System\u003c\/h3\u003e\n\u003cp\u003eThe Sirris steerer tube and motorcycle-style top cap system are designed around a \u003cstrong\u003edirect mount stem setup\u003c\/strong\u003e. This improves cockpit stiffness and helps maintain consistent steering bearing torque similar to larger motocross bikes.\u003c\/p\u003e\n\u003ch3\u003eOptional Drop Clamp for Big Wheel Builds\u003c\/h3\u003e\n\u003cp\u003eThe optional \u003cstrong\u003edrop clamp\u003c\/strong\u003e raises the front end an additional \u003cstrong\u003e25mm\u003c\/strong\u003e, extending overall fork length to approximately \u003cstrong\u003e800mm\u003c\/strong\u003e. This allows riders to run a \u003cstrong\u003e21 inch front wheel\u003c\/strong\u003e while maintaining bike balance when paired with a longer rear suspension setup.\u003c\/p\u003e\n\u003ch3\u003eAxle and Brake Mount System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltra stiff chromoly axle improves steering precision and front-end feel\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow brake upgrades\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e220mm brake rotor setups\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll Sirris brake brackets are designed for 220mm rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Upside down fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel:\u003c\/strong\u003e 220 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 775 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Length with Drop Clamp:\u003c\/strong\u003e Approximately 800 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Spacing:\u003c\/strong\u003e 178 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4 kg per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanchions:\u003c\/strong\u003e Ø43 mm high tensile steel, hard chrome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Tubes:\u003c\/strong\u003e Seamless 7050 aluminum, Type 3 hard anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop Outs:\u003c\/strong\u003e 6061 aluminum, Type 2 anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle:\u003c\/strong\u003e Ultra high tensile hard chromed axle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Clamps:\u003c\/strong\u003e Billet 6061 aluminum, Type 2 anodized coating, Black or Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteer Tube:\u003c\/strong\u003e Seamless 7050 aluminum, Type 2 anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Symmetrical adjustable closed cartridge with spring backed modified IFP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper Bodies:\u003c\/strong\u003e Seamless 7050 aluminum, Type 3 hard anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Adjustment:\u003c\/strong\u003e External tool-free compression adjuster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e Dual side high tensile steel spring, adjustable (rebound adjusted using tool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e NOK MX seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushings:\u003c\/strong\u003e Daido MX bushings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Guards:\u003c\/strong\u003e High impact PP, 210-degree wraparound\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpring Rate Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140 to 180 lb rider weight, 3.6 \/ 3.2 springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180 to 220 lb rider weight, 3.6 \/ 3.6 springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRider weight ranges are based on body weight without riding gear. Sirris factors approximately 15 pounds of riding gear into the recommended ranges. Any heavier upgrades such as batteries or controllers should be added to rider weight when selecting spring rates.\u003c\/p\u003e\n\u003ch3\u003eCMX Tune Setup Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory settings are measured in clicks from the fully closed position\u003c\/li\u003e\n\u003cli\u003eOnce closed fully clockwise, back adjusters out counter-clockwise to reach the recommended starting settings\u003c\/li\u003e\n\u003cli\u003eRiders near a weight cutoff may adjust preload to fine tune sag\u003c\/li\u003e\n\u003cli\u003eAggressive riders may benefit from moving up one spring class and lowering preload\u003c\/li\u003e\n\u003cli\u003eRider preference and terrain conditions may require further tuning\u003c\/li\u003e\n\u003cli\u003eExample: a 160 lb rider with 20 lb of upgrades calculates to 180 lb total system weight\u003c\/li\u003e\n\u003cli\u003eAggressive rider at 180 lb may prefer the heavy tune with lower preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider at 180 lb may run the medium tune with higher preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eZero XB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho This Fork Is Perfect For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eZero XB riders building a \u003cstrong\u003ehigh performance off-road setup\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrail riders who want \u003cstrong\u003ebetter front-end stability and durability\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUpgraded builds that need \u003cstrong\u003etrue motocross level suspension performance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"product-block product-block--tab\"\u003e\n\u003cdiv class=\"collapsibles-wrapper collapsibles-wrapper--border-bottom\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sirris Store","offers":[{"title":"220mm - Medium (140-180lbs) \/ CMX - Standard Clamp \/ Black","offer_id":51415114907938,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Medium (140-180lbs) \/ CMX - Standard Clamp \/ Blue","offer_id":51415114940706,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Medium (140-180lbs) \/ CMX - Drop Clamp \/ Black","offer_id":51415114973474,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Medium (140-180lbs) \/ CMX - Drop Clamp \/ Blue","offer_id":51415115006242,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51415115039010,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51415115071778,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51415115104546,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":51415115137314,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-ZERO-XB-suspension-fork-front-CMX-black.webp?v=1773352753"},{"product_id":"sirris-r46-e-moto-shock-spring-for-surron-ultra-bee","title":"Sirris R46 E-moto shock Spring | for Surron Ultra Bee","description":"\u003ch1\u003eSirris R46 Shock Spring | By Sirris Suspension | For R46 Rear Shocks on E-Moto Platforms\u003c\/h1\u003e\n\n\u003ch2\u003eDial In Your Suspension With the Correct Spring Rate\u003c\/h2\u003e\n\n\u003cp\u003e\nAt REV Rides we always remind riders that proper suspension setup starts with the correct spring rate. The \u003cstrong\u003eSirris R46 Shock Spring\u003c\/strong\u003e is designed specifically for \u003cstrong\u003eSirris R46 rear shocks\u003c\/strong\u003e, allowing riders to fine tune their suspension for rider weight, riding style, and bike setup. Choosing the right spring rate ensures the shock performs the way it was designed, delivering better traction, improved balance, and consistent suspension performance.\n\u003c\/p\u003e\n\n\u003cp\u003e\nMany riders upgrade components like batteries, controllers, or other parts that add weight to the bike. When that happens, the suspension may need a heavier spring rate to maintain proper sag and ride characteristics. Sirris offers a range of spring options so riders can match their suspension to their build and riding style.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhy the Correct Shock Spring Matters\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimizes suspension sag\u003c\/strong\u003e for improved traction and balance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintains proper damping performance\u003c\/strong\u003e from your R46 shock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports heavier upgrades\u003c\/strong\u003e such as larger batteries or controllers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproves stability\u003c\/strong\u003e during aggressive riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAllows suspension tuning\u003c\/strong\u003e for rider weight and terrain\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Length:\u003c\/strong\u003e 176 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 60 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Shock:\u003c\/strong\u003e Sirris R46 rear shock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Preload:\u003c\/strong\u003e 20 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Spring Rates\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e75 N\/mm\u003c\/li\u003e\n\u003cli\u003e85 N\/mm\u003c\/li\u003e\n\u003cli\u003e90 N\/mm\u003c\/li\u003e\n\u003cli\u003e95 N\/mm\u003c\/li\u003e\n\u003cli\u003e105 N\/mm\u003c\/li\u003e\n\u003cli\u003e115 N\/mm\u003c\/li\u003e\n\u003cli\u003e125 N\/mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eSur-Ron Ultra Bee R46 shocks require a \u003cstrong\u003espring compressor\u003c\/strong\u003e due to the short shock length\u003c\/li\u003e\n\u003cli\u003eMaximum recommended preload is \u003cstrong\u003e20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRefer to Sirris service documentation for full installation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSetup Tip\u003c\/h3\u003e\n\n\u003cp\u003e\nIf you upgrade your bike with a \u003cstrong\u003elarger battery or heavier components\u003c\/strong\u003e, we typically recommend stepping up one spring rate to compensate for the additional weight. This helps maintain correct sag and ensures the suspension continues to perform properly.\n\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eSirris R46 Rear Shocks\u003c\/li\u003e\n\u003cli\u003eCommonly used on Sur-Ron Ultra Bee setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Riders for This Spring\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eRiders adjusting suspension for \u003cstrong\u003edifferent rider weights\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBuilders upgrading to \u003cstrong\u003elarger batteries or heavier components\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnyone dialing in a \u003cstrong\u003ecustom suspension setup\u003c\/strong\u003e for their Sirris R46 shock\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris Store","offers":[{"title":"75","offer_id":51415164518690,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false},{"title":"85","offer_id":51415164551458,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false},{"title":"90","offer_id":51415166386466,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false},{"title":"95","offer_id":51415166419234,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false},{"title":"105","offer_id":51415166452002,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false},{"title":"115","offer_id":51415166484770,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false},{"title":"125","offer_id":51415166517538,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-rear-spring.webp?v=1773355132"},{"product_id":"sirris-f43-spring-single","title":"Sirris F43 spring (single)","description":"\u003ch1\u003eSirris F43 Fork Spring (Single) | By Sirris Suspension | For F43 Forks on E-Moto Platforms\u003c\/h1\u003e\n\u003ch2\u003eFine Tune Your Front Suspension the Right Way\u003c\/h2\u003e\n\u003cp\u003eAt REV Rides we always tell riders that suspension performance starts with the correct spring rate. The \u003cstrong\u003eSirris F43 Fork Spring\u003c\/strong\u003e allows riders to dial in their suspension setup to match rider weight, riding style, and bike configuration. These springs are designed \u003cspan style=\"text-decoration: underline;\"\u003especifically\u003c\/span\u003e for \u003cstrong\u003eSirris F43 forks\u003c\/strong\u003e and are available in multiple rates so you can properly balance your suspension for maximum performance.\u003c\/p\u003e\n\u003cp\u003eUnlike many forks, the F43 platform allows riders to run different spring rates in each leg to achieve an exact combined rate. This makes it possible to create a perfectly tuned setup without compromising overall fork performance. Whether you are upgrading components, adjusting for rider weight, or fine tuning your suspension for racing or trail riding, the correct spring rate makes a huge difference in traction, stability, and control.\u003c\/p\u003e\n\u003ch3\u003eWhy Proper Fork Spring Setup Matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eImproves front-end traction and stability\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintains correct suspension sag\u003c\/strong\u003e for balanced handling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimizes damping performance\u003c\/strong\u003e from your F43 fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAllows precise tuning\u003c\/strong\u003e for rider weight and riding style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports heavier upgrades\u003c\/strong\u003e such as larger batteries or performance components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Length:\u003c\/strong\u003e 445 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 29.6 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Fork:\u003c\/strong\u003e Sirris F43 forks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Single spring (two required per fork set)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Spring Rates\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3.2 N\/mm\u003c\/li\u003e\n\u003cli\u003e3.6 N\/mm\u003c\/li\u003e\n\u003cli\u003e4.0 N\/mm\u003c\/li\u003e\n\u003cli\u003e4.4 N\/mm\u003c\/li\u003e\n\u003cli\u003e4.8 N\/mm\u003c\/li\u003e\n\u003cli\u003e5.0 N\/mm\u003c\/li\u003e\n\u003cli\u003e5.4 N\/mm\u003c\/li\u003e\n\u003cli\u003e5.8 N\/mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpring Rate Tuning\u003c\/h3\u003e\n\u003cp\u003eF43 forks allow riders to run \u003cstrong\u003etwo different spring rates\u003c\/strong\u003e to achieve an in-between combined rate. This gives riders more flexibility when dialing in suspension performance.\u003c\/p\u003e\n\u003cp\u003eExample: A common Sur-Ron Trail Medium setup averages \u003cstrong\u003e4.6 N\/mm\u003c\/strong\u003e. This is achieved by installing a \u003cstrong\u003e4.4 N\/mm spring in one leg\u003c\/strong\u003e and a \u003cstrong\u003e4.8 N\/mm spring in the other\u003c\/strong\u003e. The result is a balanced combined spring rate without requiring custom springs.\u003c\/p\u003e\n\u003ch3\u003eSetup Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwo springs are required per fork set\u003c\/li\u003e\n\u003cli\u003eDifferent spring rates can be combined to achieve an in-between rate\u003c\/li\u003e\n\u003cli\u003eOil levels and clicker settings should remain the same on both fork legs\u003c\/li\u003e\n\u003cli\u003eNo separate tuning is required when running two different spring rates\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSirris F43 Forks\u003c\/li\u003e\n\u003cli\u003eCommonly used on Sur-Ron, Talaria, E-Ride Pro, Ventus, and other compact e-moto platforms using the F43 fork\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal Riders for This Upgrade\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRiders dialing in suspension for \u003cstrong\u003especific rider weights\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBuilders upgrading to \u003cstrong\u003eheavier batteries or performance components\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnyone fine tuning their \u003cstrong\u003eSirris F43 suspension setup\u003c\/strong\u003e for maximum performance\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris Store","offers":[{"title":"3.2","offer_id":51415168909602,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false},{"title":"3.6","offer_id":51415169040674,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false},{"title":"4.0","offer_id":51415175364898,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false},{"title":"4.4","offer_id":51415175397666,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false},{"title":"4.8","offer_id":51415175430434,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false},{"title":"5.0","offer_id":51415175463202,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false},{"title":"5.4","offer_id":51415175495970,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false},{"title":"5.8","offer_id":51415175528738,"sku":null,"price":36.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-fork.webp?v=1773355645"},{"product_id":"sirris-f43-220mm-fork-cmx-tune-tool-free-lsc-surron-light-bee-x","title":"Sirris F43 220mm Fork | CMX Tune | Tool free LSC | Surron Light Bee X \u0026 More","description":"\u003ch2\u003eSirris F43 CMX 220mm Tool-Free LSC Fork | By Sirris Suspension | For Sur-Ron Light Bee X\u003c\/h2\u003e\n\u003ch3\u003eBuilt to Dominate Any Terrain, Any Time\u003c\/h3\u003e\n\u003cp\u003eAt REV Rides we see a lot of suspension upgrades come through the shop, but the \u003cstrong\u003eSirris F43 CMX Fork\u003c\/strong\u003e is in a completely different class. This fork was engineered specifically for high performance compact e-moto platforms like the \u003cstrong\u003eSur-Ron Light Bee X\u003c\/strong\u003e. It delivers full-size motocross performance in a compact chassis that is stronger, stiffer, and far more capable than stock suspension.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/n4_QaBwQrRE?si=6srx8KQMC7FEOymB\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThe F43 CMX pairs an oversized \u003cstrong\u003e43mm upside-down race chassis\u003c\/strong\u003e with Sirris’ proprietary \u003cstrong\u003eCMX-tuned closed cartridge damping system\u003c\/strong\u003e. The result is razor sharp handling, incredible front end confidence, and the type of planted ride feel riders usually expect from full size race bikes. With \u003cstrong\u003e220mm of travel\u003c\/strong\u003e, tool-free compression adjustment, and race-grade materials throughout the fork, this setup completely transforms the way a Light Bee rides on rough terrain, jumps, or high-speed tracks.\u003c\/p\u003e\n\u003cp\u003eSirris started with their proven F43 race platform, then resized and lightened it specifically for compact electric motos. The longer \u003cstrong\u003e775mm chassis length\u003c\/strong\u003e, oversized stanchions, and billet clamps increase stiffness and stability while keeping weight balanced for aggressive riding. Everything about this fork was designed to reduce flex, increase durability, and maintain predictable performance even when riders start pushing these bikes to their limits.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/asLmhX5057M?si=oWYpFwoy7WOTQbJ3\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eOversized Chassis Designed to Outperform\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e43mm hard chrome stanchions\u003c\/strong\u003e resist flex, dents, and nicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7XXX-series hard anodized uppers\u003c\/strong\u003e maximize durability and structural strength\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e775mm extended fork length\u003c\/strong\u003e delivers a longer and more planted front end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm travel\u003c\/strong\u003e provides 20mm more travel than the stock Light Bee fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet aluminum triple clamps\u003c\/strong\u003e increase stiffness and reduce twisting under load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm fork spacing\u003c\/strong\u003e allows nearly unlimited tire choices for dirt or supermoto setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect mount stem compatibility\u003c\/strong\u003e for stronger cockpit integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom ultra stiff chromoly axle\u003c\/strong\u003e improves steering precision and front end feel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle style top cap system\u003c\/strong\u003e for improved steering bearing tension control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable caliper brackets and wheel spacers\u003c\/strong\u003e allow for wheel or brake upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is not just about stiffness. The F43 CMX delivers real strength without compromise. The design focuses on balance, impact absorption, and long term durability so riders can push harder without losing front end confidence.\u003c\/p\u003e\n\u003ch3\u003eRace Grade CMX Closed Cartridge Damping\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the fork is Sirris’ \u003cstrong\u003eCMX tuned symmetrical closed cartridge damper\u003c\/strong\u003e. This system was built to deliver professional level damping performance in a compact e-moto platform. Separate oil circuits isolate lubrication and damping oil, allowing the fork to maintain consistent feel even under long aggressive riding sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMX Compact Motocross Tune\u003c\/strong\u003e designed for aggressive riders and racing environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSymmetrical closed cartridge design\u003c\/strong\u003e provides fade-free damping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent oil circuits\u003c\/strong\u003e separate damping and lubrication oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-flow pistons\u003c\/strong\u003e with fully tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic bottom-out control\u003c\/strong\u003e softens heavy impacts while preserving full travel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7XXX-series internal components\u003c\/strong\u003e with hard anodizing to reduce wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Daido bushings and NOK MX seals\u003c\/strong\u003e for smooth operation and long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe CMX tune delivers a planted and predictable ride feel. Whether you are charging into rough terrain or pushing track speed, the fork remains stable, controlled, and endlessly tunable for rider preference.\u003c\/p\u003e\n\u003ch3\u003eTool-Free Compression Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe F43 CMX introduces \u003cstrong\u003etool-free compression adjusters\u003c\/strong\u003e, allowing riders to quickly fine tune front end feel without needing a screwdriver. Nearly \u003cstrong\u003e30 clicks of external compression adjustment\u003c\/strong\u003e make it easy to dial in the fork for different terrain or riding styles.\u003c\/p\u003e\n\u003ch3\u003eDirect Mount Stem System\u003c\/h3\u003e\n\u003cp\u003eThe Sirris steerer tube and motorcycle style top cap system are designed for \u003cstrong\u003edirect mount stems\u003c\/strong\u003e. This improves cockpit stiffness and helps maintain consistent steering bearing torque, similar to full-size motocross bikes.\u003c\/p\u003e\n\u003cp\u003eThe stock Sur-Ron Light Bee X stem is not compatible because the Sirris steerer tube cannot be clamped. Recommended options include a \u003cstrong\u003eWarp 9 direct mount stem\u003c\/strong\u003e or the \u003cstrong\u003eHeavy Hitter Adjustable Billet Display Mount from GritShift\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eOptional Drop Clamp for Big Wheel Builds\u003c\/h3\u003e\n\u003cp\u003eThe optional \u003cstrong\u003edrop crown clamp\u003c\/strong\u003e raises the front end an additional \u003cstrong\u003e25mm\u003c\/strong\u003e, extending overall fork length to approximately \u003cstrong\u003e800mm\u003c\/strong\u003e. This allows riders to run a \u003cstrong\u003e21 inch front wheel\u003c\/strong\u003e while maintaining proper bike balance when paired with longer rear suspension.\u003c\/p\u003e\n\u003ch3\u003eAxle and Brake Mount System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltra stiff chromoly race axle improves steering precision\u003c\/li\u003e\n\u003cli\u003eReplaceable brake caliper mount brackets allow caliper upgrades\u003c\/li\u003e\n\u003cli\u003e220mm rotor brake bracket included\u003c\/li\u003e\n\u003cli\u003eStock Light Bee X rotor is 200mm and must be upgraded to 220mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Upside Down Fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel:\u003c\/strong\u003e 220 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 775 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Length with Drop Clamp:\u003c\/strong\u003e ~800 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Spacing:\u003c\/strong\u003e 178 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4 kg per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanchions:\u003c\/strong\u003e Ø43 mm high tensile steel, hard chrome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Tubes:\u003c\/strong\u003e Seamless 7050 aluminum, Type III hard anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop Outs:\u003c\/strong\u003e 6061 aluminum, Type II anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle:\u003c\/strong\u003e Ultra high tensile hard chromed race axle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Clamps:\u003c\/strong\u003e Billet 6061 aluminum, Type II anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteer Tube:\u003c\/strong\u003e Seamless 7050 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Adjustment:\u003c\/strong\u003e External tool free LSC adjuster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e Dual side adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e NOK MX seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushings:\u003c\/strong\u003e Daido MX bushings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Guards:\u003c\/strong\u003e High impact polypropylene, 210° wraparound\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpring Rate Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140 to 180 lb rider weight, 3.6 \/ 3.2 springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180 to 220 lb rider weight, 3.6 \/ 3.6 springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRider weights are calculated without riding gear. Approximately 15 pounds of riding gear is factored into the recommended range. Upgrades such as heavier batteries or controllers should be added to rider weight when selecting spring rates.\u003c\/p\u003e\n\u003ch3\u003eCMX Tune Setup Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory settings are measured in clicks from the fully closed position\u003c\/li\u003e\n\u003cli\u003eOnce fully closed, back adjusters out according to factory recommendations\u003c\/li\u003e\n\u003cli\u003eRiders near a weight cutoff may adjust preload to fine tune sag\u003c\/li\u003e\n\u003cli\u003eAggressive riders may benefit from moving up one spring class with reduced preload\u003c\/li\u003e\n\u003cli\u003eRider preference and terrain may require further adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExample: A 160 lb rider with 20 lb of added upgrades would calculate rider weight as 180 lb. An aggressive rider would typically run the heavy tune with lower preload, while a relaxed rider could run the medium spring with higher preload.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSur-Ron Light Bee X \u0026amp; S\u003c\/li\u003e\n\u003cli\u003eSegway X160 \u0026amp; X260\u003c\/li\u003e\n\u003cli\u003eTalaria MX3 \u0026amp; MX4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho This Fork Is Perfect For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSur-Ron riders building a \u003cstrong\u003erace or track focused Light Bee\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrail riders who want \u003cstrong\u003eserious durability and front end confidence\u003c\/strong\u003e on rough terrain\u003c\/li\u003e\n\u003cli\u003eHigh power builds that need \u003cstrong\u003etrue motocross level suspension performance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"product-block\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503118024994,"sku":"430-99-019-MED-02,  43MM USD, 775MM X 220MM, 25MM OFFSET, SURRON LBX, MED, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503118057762,"sku":"430-99-019-MED-04,  43MM USD, 775MM X 220MM, 25MM OFFSET, SURRON LBX, MED, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503118090530,"sku":"430-99-019-MED-02-DR,  43MM USD, 775MM X 220MM, 25MM OFFSET, SURRON LBX, MED, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503118123298,"sku":"430-99-019-HVY-02,  43MM USD, 775MM X 220MM, 25MM OFFSET, SURRON LBX, HVY, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503118156066,"sku":"430-99-019-HVY-04,  43MM USD, 775MM X 220MM, 25MM OFFSET, SURRON LBX, HVY, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503118188834,"sku":"430-99-019-HVY-02-DR,  43MM USD, 775MM X 220MM, 25MM OFFSET, SURRON LBX, HEAVY, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-SURRON-LBX-suspension-fork-front-CMX-black_815b5de4-fb54-4d73-8361-2f659f586ced.jpg?v=1775673774"},{"product_id":"sirris-f43-220mm-fork-cmx-tune-tool-free-lsc-talaria-mx5","title":"Sirris F43 220mm Fork | CMX Tune | Tool free LSC | Talaria MX5","description":"\u003ch2\u003eSirris F43 220mm Fork | CMX Tune | Tool-Free LSC | Talaria MX5\u003c\/h2\u003e\n\u003ch3\u003eBuilt to Dominate Any Terrain, Any Time\u003c\/h3\u003e\n\u003cp\u003eAt REV Rides we spend a lot of time dialing in suspension for compact e-moto platforms, and the \u003cstrong\u003eSirris F43 CMX Fork\u003c\/strong\u003e is one of the most serious performance upgrades you can install on the \u003cstrong\u003eTalaria MX5\u003c\/strong\u003e. This fork brings true motocross level suspension engineering to a lightweight electric bike that was built to ride hard.\u003c\/p\u003e\n\u003cp\u003eThe F43 CMX combines an oversized \u003cstrong\u003e43mm upside-down race chassis\u003c\/strong\u003e with Sirris’ proprietary \u003cstrong\u003eCMX tuned closed cartridge damping system\u003c\/strong\u003e. The result is razor sharp steering response, improved stability, and unreal front end confidence whether you are riding trails, hitting jumps, or pushing the bike at higher speeds. With \u003cstrong\u003e220mm of suspension travel\u003c\/strong\u003e, tool-free compression adjustment, and race grade materials throughout, this fork dramatically improves control compared to stock suspension.\u003cmeta charset=\"utf-8\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/n4_QaBwQrRE?si=6srx8KQMC7FEOymB\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eSirris developed the F43 platform by taking their proven race fork architecture and resizing it specifically for compact electric motos. The \u003cstrong\u003e775mm extended chassis\u003c\/strong\u003e, oversized stanchions, and billet clamps create a longer, stronger, and more planted front end while still keeping the bike agile and responsive. The goal is simple, eliminate flex, improve durability, and give riders predictable suspension performance when pushing their bike harder.\u003c\/p\u003e\n\u003ch3\u003eOversized Chassis Designed to Outperform\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e43mm hard chrome stanchions\u003c\/strong\u003e resist flex, dents, and wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7XXX series hard anodized uppers\u003c\/strong\u003e maximize strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e775mm extended fork length\u003c\/strong\u003e creates a longer and more stable front end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm travel\u003c\/strong\u003e delivers 20mm more suspension travel than stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet aluminum triple clamps\u003c\/strong\u003e increase stiffness and reduce twisting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm fork spacing\u003c\/strong\u003e allows nearly unlimited tire choices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect mount stem compatibility\u003c\/strong\u003e improves cockpit stiffness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra stiff chromoly race axle\u003c\/strong\u003e improves steering precision and control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle style top cap\u003c\/strong\u003e improves steering bearing tension adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable caliper mounts and wheel spacers\u003c\/strong\u003e allow brake and wheel upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis design focuses on more than stiffness alone. The F43 CMX is built to maintain balance, absorb heavy hits, and deliver long-term durability for riders pushing harder on rough terrain or track riding. \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/y8ZjgHK3_Vc?si=3FkKGJa3XNa6oJMZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eRace Grade CMX Closed Cartridge Damping\u003c\/h3\u003e\n\u003cp\u003eAt the core of the fork is the \u003cstrong\u003eCMX tuned symmetrical closed cartridge damper\u003c\/strong\u003e. This advanced system provides professional level damping with independent oil circuits that separate lubrication and damping oil. That separation allows the fork to maintain consistent feel even during long aggressive riding sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMX Compact Motocross Tune\u003c\/strong\u003e designed for aggressive riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue symmetrical closed cartridge design\u003c\/strong\u003e delivers fade free damping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent oil circuits\u003c\/strong\u003e isolate damping and lubrication oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow pistons\u003c\/strong\u003e with tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic bottom out control\u003c\/strong\u003e protects against harsh landings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard anodized internal components\u003c\/strong\u003e reduce wear and increase longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Daido bushings and NOK MX seals\u003c\/strong\u003e ensure smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe CMX tuning provides a planted and predictable ride feel. From aggressive trail riding to high speed track laps, the fork remains composed and highly tunable for rider preference.\u003c\/p\u003e\n\u003ch3\u003eTool-Free Compression Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe F43 CMX features \u003cstrong\u003etool-free compression adjusters\u003c\/strong\u003e so riders can quickly fine tune the suspension without tools. With nearly \u003cstrong\u003e30 clicks of external adjustment\u003c\/strong\u003e, dialing in the fork for different terrain or riding styles is quick and easy.\u003c\/p\u003e\n\u003ch3\u003eDirect Mount Stem System\u003c\/h3\u003e\n\u003cp\u003eThe Sirris steerer tube and motorcycle-style top cap system are designed for \u003cstrong\u003edirect mount stems\u003c\/strong\u003e. This improves cockpit stiffness and helps maintain consistent steering bearing torque similar to full-size motocross bikes.\u003c\/p\u003e\n\u003ch3\u003eOptional Drop Clamp for Big Wheel Builds\u003c\/h3\u003e\n\u003cp\u003eThe optional \u003cstrong\u003edrop clamp\u003c\/strong\u003e raises the front end an additional \u003cstrong\u003e25mm\u003c\/strong\u003e, extending overall fork length to approximately \u003cstrong\u003e800mm\u003c\/strong\u003e. This allows riders to run a \u003cstrong\u003e21 inch front wheel\u003c\/strong\u003e while maintaining proper bike balance when paired with longer rear suspension.\u003c\/p\u003e\n\u003ch3\u003eAxle and Brake Mount System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltra stiff chromoly axle improves steering precision\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow brake upgrades\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e220mm brake rotor setups\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll Sirris brake brackets are designed for 220mm rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Upside Down Fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel:\u003c\/strong\u003e 220 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 775 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Length with Drop Clamp:\u003c\/strong\u003e ~800 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Spacing:\u003c\/strong\u003e 178 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4 kg per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanchions:\u003c\/strong\u003e Ø43 mm high tensile steel, hard chrome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Tubes:\u003c\/strong\u003e Seamless 7050 aluminum, Type III hard anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop Outs:\u003c\/strong\u003e 6061 aluminum, Type II anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle:\u003c\/strong\u003e Ultra high tensile hard chromed axle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Clamps:\u003c\/strong\u003e Billet 6061 aluminum, Type II anodized (Black or Blue)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteer Tube:\u003c\/strong\u003e Seamless 7050 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Symmetrical adjustable closed cartridge with modified IFP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Adjustment:\u003c\/strong\u003e External tool-free LSC adjuster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e Dual side adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e NOK MX seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushings:\u003c\/strong\u003e Daido MX bushings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Guards:\u003c\/strong\u003e High impact PP wraparound guards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpring Rate Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140 to 180 lb rider weight, 3.6 \/ 3.6 springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180 to 220 lb rider weight, 4.0 \/ 3.6 springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRider weight ranges are calculated without riding gear. Approximately 15 pounds of riding gear is factored into the recommended range. Any upgrades such as heavier batteries or controllers should be added to rider weight when selecting spring rates.\u003c\/p\u003e\n\u003ch3\u003eCMX Tune Setup Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory settings are measured in clicks from the fully closed position\u003c\/li\u003e\n\u003cli\u003eBack adjusters out from the closed position to reach factory settings\u003c\/li\u003e\n\u003cli\u003eRiders near a weight cutoff may adjust preload to fine tune sag\u003c\/li\u003e\n\u003cli\u003eAggressive riders may benefit from moving up one spring class\u003c\/li\u003e\n\u003cli\u003eRiding style and terrain may require additional tuning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTalaria MX5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho This Fork Is Perfect For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTalaria MX5 riders building a \u003cstrong\u003erace ready or track focused setup\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrail riders who want \u003cstrong\u003emaximum front end stability and durability\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh power builds that need \u003cstrong\u003etrue motocross level suspension performance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503118221602,"sku":"430-99-020-MED-02,  43MM USD, 775MM X 220MM, 25MM OFFSET, TALARIA MX5, MED, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503118254370,"sku":"430-99-020-MED-04,  43MM USD, 775MM X 220MM, 25MM OFFSET, TALARIA MX5, MED, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503118287138,"sku":"430-99-020-MED-02-DR,  43MM USD, 775MM X 220MM, 25MM OFFSET, TALARIA MX5, MED, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503118319906,"sku":"430-99-020-HVY-02,  43MM USD, 775MM X 220MM, 25MM OFFSET, TALARIA MX5, HVY, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503118352674,"sku":"430-99-020-HVY-04,  43MM USD, 775MM X 220MM, 25MM OFFSET, TALARIA MX5, HVY, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503118385442,"sku":"430-99-020-HVY-02-DR,  43MM USD, 775MM X 220MM, 25MM OFFSET, TALARIA MX5, HEAVY, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-TALARIA-MX5-suspension-fork-front-CMX-black_c1a03e2d-5b7c-483d-89a4-351ca9fd65f0.jpg?v=1775673774"},{"product_id":"r46-mx-tune-lsc","title":"Sirris R46 E-moto shock w\/ MX tune | for Surron Ultra Bee","description":"\u003cp\u003eMX Tune is a motocross specific tune with balance, control, and bottoming resistance for the fastest speeds. It's firm suspension for maximum control and support for huge jumps, whoops and fast cornering. If you select the EBMX or MX spec, you’ll compromise a bit of trail plushness for improved bottoming resistance.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eRIDER WEIGHT SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSirris offers five weight ranges to choose from when selecting your MX Tune R46 shock. (\u003ci\u003eListed weight ranges are rider weight without riding gear on. \u003cmeta charset=\"utf-8\"\u003e15 pounds of riding gear is calculated into the weight ranges)\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e120 lbs - 160 lbs (Light ships with 85 N\/mm spring)\u003cbr\u003e\u003cspan class=\"Apple-tab-span\"\u003e\u003c\/span\u003e160 lbs - 200 lbs (Medium ships with 95 N\/mm spring)\u003cbr\u003e200 lbs - 240 lbs (Heavy ships with 105 N\/mm spring)\u003cbr\u003e240 lbs - 280 lbs (X Heavy ships with 115 N\/mm spring)\u003cbr\u003e280 lbs - 320 lbs (XX Heavy ships with 115 N\/mm spring)\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003ePRODUCT SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003cbr\u003ePiggyback, steel spring\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStroke\u003c\/strong\u003e\u003cbr\u003e85 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003cbr\u003e320 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003cbr\u003e3.9 lbs \/ 1.76 kg without spring\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePiston\u003c\/strong\u003e \u003cbr\u003eHigh flow Ø46 mm, CNC 6061 billet aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePiston band\u003c\/strong\u003e\u003cbr\u003eHard band\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShaft\u003c\/strong\u003e \u003cbr\u003eØ16 mm OD chrome-plated, induction hardened steel, hollow, Ø 5.5 mm ID\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShock body\u003c\/strong\u003e\u003cbr\u003eSeamless 6061 aluminum, type 3 hard anodized coating, ACME thread\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpring retainer\u003c\/strong\u003e\u003cbr\u003eSeamless 6061 aluminum, type 3 hard anodized coating, ACME thread, with locking feature, manual adjust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBottom out\u003c\/strong\u003e\u003cbr\u003eMCU bumper\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTop out\u003c\/strong\u003e\u003cbr\u003eRubber bumper\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003cbr\u003eTunable compression and rebound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReservoir\u003c\/strong\u003e\u003cbr\u003ePressurized with floating piston\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003cbr\u003eExternal compression and rebound adjustment\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003cbr\u003eNBR\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sirris Store","offers":[{"title":"Light (120-160 lb) \/ MX \/ LSC","offer_id":51503118614818,"sku":"246-99-007-LTE-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, MX, LTE","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Medium (160-200 lb) \/ MX \/ LSC","offer_id":51503118647586,"sku":"246-99-007-MED-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, MX, MED","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (200-240 lb) \/ MX \/ LSC","offer_id":51503118680354,"sku":"246-99-007-HVY-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, MX, HVY","price":899.0,"currency_code":"USD","in_stock":true},{"title":"X Heavy (240-280 lb) \/ MX \/ LSC","offer_id":51503118713122,"sku":"246-99-007-1XH-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, MX, 1XH","price":899.0,"currency_code":"USD","in_stock":true},{"title":"XX Heavy (280-320 lb) \/ MX \/ LSC","offer_id":51503118745890,"sku":"246-99-007-2XH-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, MX, 2XH","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-R46-suspension-shock-front-mx_e3aaa0a1-f155-47d8-a5fc-3f853584e8ce.jpg?v=1779319482"},{"product_id":"r46-trail-tune-lsc","title":"Sirris R46 E-moto shock w\/ Trail tune | for Surron Ultra Bee","description":"\u003cp\u003eTrail Tune is a very versatile and aggressive tune that is sporty and supportive, designed to go fast over a wide variety of terrain.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eRIDER WEIGHT SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSirris offers six weight ranges to choose from when selecting your Trail Tune R46 shock. (\u003ci\u003eListed weight ranges are rider weight without riding gear on. 15 pounds of riding gear is calculated into the weight ranges)\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e130 lbs - 160 lbs (Light ships with 75 N\/mm spring)\u003cbr\u003e\u003cspan class=\"Apple-tab-span\"\u003e\u003c\/span\u003e160 lbs - 210 lbs (Medium ships with 85 N\/mm spring)\u003cbr\u003e210 lbs - 230 lbs (Heavy ships with 90 N\/mm spring)\u003cbr\u003e230 lbs - 250 lbs (X Heavy ships with 95 N\/mm spring)\u003cbr\u003e250 lbs - 280 lbs (XX Heavy ships with 105 N\/mm spring)\u003cbr\u003e280 lbs - 350 lbs (XXX Heavy ships with 115 N\/mm spring)\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003ePRODUCT SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003cbr\u003ePiggyback, steel spring\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStroke\u003c\/strong\u003e\u003cbr\u003e85 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003cbr\u003e320 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003cbr\u003e3.9 lbs \/ 1.76 kg without spring\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePiston\u003c\/strong\u003e \u003cbr\u003eHigh flow Ø46 mm, CNC 6061 billet aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePiston band\u003c\/strong\u003e\u003cbr\u003eHard band\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShaft\u003c\/strong\u003e \u003cbr\u003eØ16 mm OD chrome-plated, induction hardened steel, hollow, Ø 5.5 mm ID\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShock body\u003c\/strong\u003e\u003cbr\u003eSeamless 6061 aluminum, type 3 hard anodized coating, ACME thread\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpring retainer\u003c\/strong\u003e\u003cbr\u003eSeamless 6061 aluminum, type 3 hard anodized coating, ACME thread, with locking feature, manual adjust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBottom out\u003c\/strong\u003e\u003cbr\u003eMCU bumper\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTop out\u003c\/strong\u003e\u003cbr\u003eRubber bumper\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003cbr\u003eTunable compression and rebound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReservoir\u003c\/strong\u003e\u003cbr\u003ePressurized with floating piston\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003cbr\u003eExternal compression and rebound adjustment\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003cbr\u003eNBR\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sirris Store","offers":[{"title":"Light (130-160 lb) \/ Trail \/ LSC","offer_id":51503118975266,"sku":"246-99-002-LTE-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, LTE","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Medium (160-210 lb) \/ Trail \/ LSC","offer_id":51503119008034,"sku":"246-99-002-MED-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, MED","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (210-230 lb) \/ Trail \/ LSC","offer_id":51503119040802,"sku":"246-99-002-HVY-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, HVY","price":899.0,"currency_code":"USD","in_stock":true},{"title":"X Heavy (230-250 lb) \/ Trail \/ LSC","offer_id":51503119073570,"sku":"246-99-002-1XH-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, 1XH","price":899.0,"currency_code":"USD","in_stock":true},{"title":"XX Heavy (250-280 lb) \/ Trail \/ LSC","offer_id":51503119106338,"sku":"246-99-002-2XH-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, 2XH","price":899.0,"currency_code":"USD","in_stock":true},{"title":"XXX Heavy (280-350 lb) \/ Trail \/ LSC","offer_id":51503119139106,"sku":"246-99-002-3XH-XX  RR SHOCK, SURRON UB AM, 46MM, 320MM X 84.2MM, 3XH","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-R46-suspension-shock-front-trail_59f4b011-c4ab-4108-ba83-7797e5ab6c4f.jpg?v=1779319483"},{"product_id":"sirris-f43-220mm-fork-cmx-tune-tool-free-lsc-e-ride-pro-ss-3-0","title":"Sirris F43 220mm Fork | CMX Tune | Tool free LSC | for E-Ride Pro SS 3.0","description":"\u003ch1\u003eSirris F43 220mm Fork | CMX Tune | Tool-Free LSC | by Sirris Suspension | For E-Ride Pro SS 3.0\u003c\/h1\u003e\n\u003ch2\u003eBuilt to Dominate Any Terrain, Any Time\u003c\/h2\u003e\n\u003cp\u003eAt REV Rides we work with a lot of suspension upgrades, and the \u003cstrong\u003eSirris F43 CMX Fork\u003c\/strong\u003e is easily one of the most impressive compact e-moto forks available today. Designed specifically for platforms like the \u003cstrong\u003eE-Ride Pro SS 3.0\u003c\/strong\u003e, this fork delivers full-size motocross level performance in a chassis optimized for lightweight electric bikes.\u003c\/p\u003e\n\u003cp\u003eThe F43 CMX combines an oversized \u003cstrong\u003e43mm upside-down race chassis\u003c\/strong\u003e with Sirris’ proprietary \u003cstrong\u003eCMX tuned closed cartridge damping system\u003c\/strong\u003e. The result is razor sharp handling, incredible front end confidence, and consistent control when riding aggressively on trails, tracks, or rough terrain. With \u003cstrong\u003e220mm of suspension travel\u003c\/strong\u003e, tool free compression adjustment, and race grade materials throughout the fork, this is a serious upgrade over stock suspension.\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/n4_QaBwQrRE?si=6srx8KQMC7FEOymB\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSirris started with their race-proven F43 platform and resized it specifically for compact electric motos. The \u003cstrong\u003e775mm chassis length\u003c\/strong\u003e, oversized stanchions, and billet clamps create a stronger and more planted front end while maintaining the agility these bikes are known for. The design focuses on eliminating flex, improving durability, and delivering predictable suspension performance even when the bike is pushed hard.\u003c\/p\u003e\n\u003ch3\u003eOversized Chassis Designed to Outperform\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e43mm hard chrome stanchions\u003c\/strong\u003e resist flex, dents, and wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7XXX series hard anodized uppers\u003c\/strong\u003e maximize strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e775mm extended fork length\u003c\/strong\u003e creates a longer and more stable front end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm travel\u003c\/strong\u003e provides 20mm more travel than stock suspension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet aluminum triple clamps\u003c\/strong\u003e increase stiffness and reduce twisting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm fork spacing\u003c\/strong\u003e allows nearly unlimited tire choices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect mount stem compatibility\u003c\/strong\u003e improves cockpit stiffness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra stiff chromoly race axle\u003c\/strong\u003e increases steering precision and front end feel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle style top cap\u003c\/strong\u003e improves steering bearing tension control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable brake mounts and wheel spacers\u003c\/strong\u003e allow brake and wheel upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis design focuses on more than just stiffness. The F43 CMX is built to improve balance, soak up hard impacts, and maintain long term durability for riders pushing higher speeds and rougher terrain.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/y8ZjgHK3_Vc?si=3FkKGJa3XNa6oJMZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-block product-block--tab\"\u003e\n\u003cdiv class=\"collapsibles-wrapper collapsibles-wrapper--border-bottom\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRace Grade CMX Closed Cartridge Damping\u003c\/h3\u003e\n\u003cp\u003eAt the core of the fork is the \u003cstrong\u003eCMX tuned symmetrical closed cartridge damper\u003c\/strong\u003e. This advanced system provides professional level damping performance with independent oil circuits that separate lubrication and damping oil. This design helps maintain consistent performance even during long aggressive riding sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMX Compact Motocross Tune\u003c\/strong\u003e designed for aggressive riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSymmetrical closed cartridge design\u003c\/strong\u003e delivers fade free damping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent oil circuits\u003c\/strong\u003e isolate damping and lubrication oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow pistons\u003c\/strong\u003e with fully tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic bottom out control\u003c\/strong\u003e protects against harsh landings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard anodized internal components\u003c\/strong\u003e reduce wear and increase longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Daido bushings and NOK MX seals\u003c\/strong\u003e ensure smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe CMX tuning delivers a planted and predictable ride feel. From aggressive trail riding to high speed track laps, the fork stays composed and easy to tune for rider preference.\u003c\/p\u003e\n\u003ch3\u003eTool-Free Compression Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe F43 CMX features \u003cstrong\u003etool free compression adjusters\u003c\/strong\u003e, allowing riders to quickly adjust suspension settings without tools. With nearly \u003cstrong\u003e30 clicks of external adjustment\u003c\/strong\u003e, dialing in the fork for different terrain or riding styles is fast and simple.\u003c\/p\u003e\n\u003ch3\u003eDirect Mount Stem System\u003c\/h3\u003e\n\u003cp\u003eThe Sirris steerer tube and motorcycle style top cap system are designed for \u003cstrong\u003edirect mount stems\u003c\/strong\u003e. This setup improves cockpit stiffness and helps maintain consistent steering bearing torque, similar to larger motocross bikes.\u003c\/p\u003e\n\u003cp\u003eThe stock \u003cstrong\u003eE-Ride Pro stem is not compatible\u003c\/strong\u003e because the Sirris steerer tube cannot be clamped. We recommend using a \u003cstrong\u003eWarp 9 direct mount stem\u003c\/strong\u003e or the \u003cstrong\u003eHeavy Hitter Adjustable Billet Display Mount by GritShift\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eOptional Drop Clamp for Big Wheel Builds\u003c\/h3\u003e\n\u003cp\u003eThe optional \u003cstrong\u003edrop clamp\u003c\/strong\u003e raises the front end an additional \u003cstrong\u003e25mm\u003c\/strong\u003e, extending fork length to approximately \u003cstrong\u003e800mm\u003c\/strong\u003e. This allows riders to run a \u003cstrong\u003e21 inch front wheel\u003c\/strong\u003e while maintaining proper bike balance when paired with longer rear suspension.\u003c\/p\u003e\n\u003ch3\u003eAxle and Brake Mount System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltra stiff chromoly axle improves steering precision\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow brake upgrades\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e220mm brake rotor setups\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll Sirris brake brackets are designed for 220mm rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Upside Down Fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel:\u003c\/strong\u003e 220 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 775 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Length with Drop Clamp:\u003c\/strong\u003e ~800 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Spacing:\u003c\/strong\u003e 178 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4 kg per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanchions:\u003c\/strong\u003e Ø43 mm high tensile steel, hard chrome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Tubes:\u003c\/strong\u003e Seamless 7050 aluminum, Type III hard anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop Outs:\u003c\/strong\u003e 6061 aluminum, Type II anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle:\u003c\/strong\u003e Ultra high tensile hard chromed axle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Clamps:\u003c\/strong\u003e Billet 6061 aluminum, Type II anodized (Black or Blue)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteer Tube:\u003c\/strong\u003e Seamless 7050 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Symmetrical adjustable closed cartridge with modified IFP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Adjustment:\u003c\/strong\u003e External tool free LSC adjuster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e Dual side adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e NOK MX seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushings:\u003c\/strong\u003e Daido MX bushings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Guards:\u003c\/strong\u003e High impact PP wraparound guards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpring Rate Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140 to 180 lb rider weight, 3.6 \/ 3.6 springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180 to 220 lb rider weight, 4.0 \/ 3.6 springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRider weight ranges are calculated without riding gear. Approximately 15 pounds of riding gear is factored into the recommended range. Any upgrades such as heavier batteries or controllers should be added to rider weight when selecting spring rates.\u003c\/p\u003e\n\u003ch3\u003eCMX Tune Setup Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory settings are measured in clicks from the fully closed position\u003c\/li\u003e\n\u003cli\u003eBack adjusters out from closed position to reach factory settings\u003c\/li\u003e\n\u003cli\u003eRiders near a weight cutoff may adjust preload to fine tune sag\u003c\/li\u003e\n\u003cli\u003eAggressive riders may benefit from moving up one spring class\u003c\/li\u003e\n\u003cli\u003eRiding style and terrain may require further tuning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eE-Ride Pro SS 3.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho This Fork Is Perfect For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eE-Ride Pro riders building a \u003cstrong\u003erace ready or track focused setup\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrail riders who want \u003cstrong\u003emaximum front end stability and durability\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh power builds that need \u003cstrong\u003etrue motocross level suspension performance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-block product-block--tab\"\u003e\n\u003cdiv class=\"collapsibles-wrapper collapsibles-wrapper--border-bottom\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503119499554,"sku":"430-99-024-MED-02,  43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, MED, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503119532322,"sku":"430-99-024-MED-04,  43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, MED, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503119565090,"sku":"430-99-024-MED-02-DR,  43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, MED, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503119597858,"sku":"430-99-024-HVY-02, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, HVY, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503119630626,"sku":"430-99-024-HVY-04, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, HVY, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503119663394,"sku":"430-99-024-HVY-02-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, HEAVY, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":52090408927522,"sku":"430-99-024-HVY-02-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, HEAVY, BLUE, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":52183641620770,"sku":"430-99-024-MED-04-DR,  43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 3.0, MED, BLUE, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-E-RIde-Pro-SS-30-suspension-fork-3_4-CMX-black.jpg?v=1775673780"},{"product_id":"sirris-f43-220mm-fork-cmx-tune-tool-free-lsc-ventus-one","title":"Sirris F43 220mm Fork | CMX Tune | Tool Free LSC | Ventus One+","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eSirris offers two weight ranges when selecting your CMX Tune F43 fork for Ventus One + (Plus). (\u003ci\u003eListed weight ranges are rider weight without riding gear on. \u003cmeta charset=\"utf-8\"\u003e15 pounds of riding gear is calculated into the weight ranges)\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e140 lbs - 180 lbs  (Medium \u003cmeta charset=\"utf-8\"\u003e= 3.6\/3.6 springs)\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e180 lbs - 220 lbs  (Heavy \u003cmeta charset=\"utf-8\"\u003e= \u003cmeta charset=\"utf-8\"\u003e4.0\/3.6 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eFORK SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003cbr\u003eUpside down fork\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTravel\u003c\/strong\u003e\u003cbr\u003e220 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFree length\u003c\/strong\u003e\u003cbr\u003e775 mm\u003cbr\u003e(\u003cspan\u003edrop clamp option adds another 25mm of extended length)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eFork Spacing\u003c\/strong\u003e\u003cbr\u003e178 mm - allows for unlimited tire choice (dirt or street)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFork weight\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStanchions\u003c\/strong\u003e\u003cbr\u003eØ43, high tensile steel with hard chrome\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOuter tubes\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDrop outs\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e6061 aluminum, type 2 anodized coating\u003cbr\u003eReplaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eAxle\u003c\/strong\u003e\u003cbr\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTriple clamps\u003c\/strong\u003e\u003cbr\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black)\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003eOptional drop clamp allows for 21” front wheel conversion (black only)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSteer tube\u003c\/strong\u003e \u003cbr\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003cbr\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamper bodies\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRebound\u003c\/strong\u003e\u003cbr\u003eDual side high tensile steel spring, adjustable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003cbr\u003eExternal tool-free compression, rebound adjustment\u003cbr\u003e(rebound adjusted using tool)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eNOK MX seals\u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBushings\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eDaido MX bushings\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuards\u003c\/strong\u003e\u003cbr\u003eHigh impact PP, 210-degree wraparound\u003c\/p\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503119696162,"sku":"430-99-023-MED-02, 43MM USD, 775MM X 220MM, 25MM OFFSET, VENTUS ONE+, MED, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503119728930,"sku":"430-99-023-MED-04, 43MM USD, 775MM X 220MM, 25MM OFFSET, VENTUS ONE+, MED, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503119761698,"sku":"430-99-023-MED-02-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, VENTUS ONE+, MED, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503119794466,"sku":"430-99-023-HVY-02, 43MM USD, 775MM X 220MM, 25MM OFFSET, VENTUS ONE+, HVY, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503119827234,"sku":"430-99-023-HVY-04, 43MM USD, 775MM X 220MM, 25MM OFFSET, VENTUS ONE+, HVY, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503119860002,"sku":"430-99-023-HVY-02-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, VENTUS ONE+, HEAVY, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-VENTUS-ONE-suspension-fork-front-CMX-black_7140f1f8-458d-4f13-920f-6f63e9e80d3d.jpg?v=1775673780"},{"product_id":"sirris-f43-220mm-fork-cmx-tune-tool-free-lsc-e-ride-pro-sr","title":"Sirris F43 220mm Fork | CMX Tune | Tool-Free LSC | E-Ride Pro SR","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eSirris offers two weight ranges when selecting your CMX Tune F43 fork for E-Ride Pro SR. (\u003ci\u003eListed weight ranges are rider weight without riding gear on. \u003cmeta charset=\"utf-8\"\u003e15 pounds of riding gear is calculated into the weight ranges)\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e140 lbs - 180 lbs  (Medium \u003cmeta charset=\"utf-8\"\u003e= 4.0\/4.0 springs)\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e180 lbs - 220 lbs  (Heavy \u003cmeta charset=\"utf-8\"\u003e= \u003cmeta charset=\"utf-8\"\u003e4.4\/4.0 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eFORK SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003cbr\u003eUpside down fork\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTravel\u003c\/strong\u003e\u003cbr\u003e220 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFree length\u003c\/strong\u003e\u003cbr\u003e775 mm\u003cbr\u003e(\u003cspan\u003edrop clamp option adds another 25mm of extended length)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eFork Spacing\u003c\/strong\u003e\u003cbr\u003e178 mm - allows for unlimited tire choice (dirt or street)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFork weight\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStanchions\u003c\/strong\u003e\u003cbr\u003eØ43, high tensile steel with hard chrome\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOuter tubes\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDrop outs\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e6061 aluminum, type 2 anodized coating\u003cbr\u003eReplaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eAxle\u003c\/strong\u003e\u003cbr\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTriple clamps\u003c\/strong\u003e\u003cbr\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black)\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003eOptional drop clamp allows for 21” front wheel conversion (black only)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSteer tube\u003c\/strong\u003e \u003cbr\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003cbr\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamper bodies\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRebound\u003c\/strong\u003e\u003cbr\u003eDual side high tensile steel spring, adjustable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003cbr\u003eExternal tool-free compression, rebound adjustment\u003cbr\u003e(rebound adjusted using tool)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eNOK MX seals\u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBushings\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eDaido MX bushings\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuards\u003c\/strong\u003e\u003cbr\u003eHigh impact PP, 210-degree wraparound\u003c\/p\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503119171874,"sku":"430-99-014-MED-02, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, MED, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503119204642,"sku":"430-99-014-MED-04, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, MED, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503119237410,"sku":"430-99-014-MED-02-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, MED, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503119270178,"sku":"430-99-014-HVY-02, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, HVY, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503119302946,"sku":"430-99-014-HVY-04, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, HVY, BLUE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503119335714,"sku":"430-99-014-HVY-02-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, HEAVY, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":52183645192482,"sku":"430-99-014-MED-04-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, MED, BLUE, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":52183645454626,"sku":"430-99-014-HVY-04-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SR, HEAVY, BLUE, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-E-RIde-Pro-suspension-fork-3_4-CMX-black_0946a1ed-cfd0-467c-914f-93d4c021e257.jpg?v=1775673780"},{"product_id":"sirris-f43-246mm-fork-trail-tune-lsc-surron-ultra-bee","title":"Sirris F43 246mm Fork | Trail-Tune | LSC | Surron Ultra Bee","description":"\u003cp\u003eTrail Tune is a very versatile and aggressive tune that is sporty and supportive, designed to go fast over a wide variety of terrain.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eRIDER WEIGHT SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSirris offers six weight ranges to choose from when selecting your Trail Tune F43 fork. (\u003ci\u003eListed weight ranges are rider weight without riding gear on. 15 pounds of riding gear is calculated into the weight ranges)\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e130 lbs - 160 lbs (Light = 4.0\/4.0 springs)\u003cbr\u003e\u003cspan class=\"Apple-tab-span\"\u003e\u003c\/span\u003e160 lbs - 210 lbs (Medium\u003cmeta charset=\"utf-8\"\u003e = 4.8\/4.4 springs)\u003cbr\u003e210 lbs - 230 lbs (Heavy\u003cmeta charset=\"utf-8\"\u003e = 5.0\/4.8 springs)\u003cbr\u003e230 lbs - 250 lbs (X Heavy\u003cmeta charset=\"utf-8\"\u003e = 5.0\/5.0 springs)\u003cbr\u003e250 lbs - 280 lbs (XX Heavy\u003cmeta charset=\"utf-8\"\u003e = 5.4\/5.0 springs)\u003cbr\u003e280 lbs - 350 lbs (XXX Heavy\u003cmeta charset=\"utf-8\"\u003e = 5.8\/5.4 springs)\u003c\/p\u003e\n\u003cp\u003eFork spring rates listed above are left side\/right side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eFORK SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003cbr\u003eUpside down fork\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTravel\u003c\/strong\u003e\u003cbr\u003e246 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFree length\u003c\/strong\u003e\u003cbr\u003e856 mm\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFork weight, includes clamps and steerer\u003c\/strong\u003e\u003cbr\u003e22 lbs \/ 10kg\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStanchions\u003c\/strong\u003e\u003cbr\u003eØ43, high tensile steel with hard chrome\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOuter tubes\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDrop outs\u003c\/strong\u003e\u003cbr\u003eForged 6061 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTriple clamps\u003c\/strong\u003e\u003cbr\u003eForged 6061 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSteer tube\u003c\/strong\u003e \u003cbr\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003cbr\u003eSymmetrical, adjustable closed cartridge with spring backed IFP\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamper bodies\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRebound\u003c\/strong\u003e\u003cbr\u003eDual side high tensile steel spring, adjustable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003cbr\u003eExternal compression and rebound adjustment\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003cbr\u003eNBR \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuards\u003c\/strong\u003e\u003cbr\u003eHigh impact PP, 210-degree wraparound \u003c\/p\u003e","brand":"Sirris Store","offers":[{"title":"Light (130-160 lb) \/ Trail \/ LSC","offer_id":51503118778658,"sku":"430-99-001-LTE-XX 43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, LTE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (160-210 lb) \/ Trail \/ LSC","offer_id":51503118811426,"sku":"430-99-001-MED-XX  43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, MED","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (210-230 lb) \/ Trail \/ LSC","offer_id":51503118844194,"sku":"430-99-001-HVY-XX  43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, HVY","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"X Heavy (230-250 lb) \/ Trail \/ LSC","offer_id":51503118876962,"sku":"430-99-001-1XH-XX  43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, 1XH","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"XX Heavy (250-280 lb) \/ Trail \/ LSC","offer_id":51503118909730,"sku":"430-99-001-2XH-XX  43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, 2XH","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"XXX Heavy (280-350 lb) \/ Trail \/ LSC","offer_id":51503118942498,"sku":"430-99-001-3XH-XX  43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON UB AM, 3XH","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-suspension-fork-front-trail_78149b5e-fdb0-4d72-b39d-b4b49e6bc97f.jpg?v=1775673779"},{"product_id":"sirris-rear-triangle-for-surron-ultra-bee","title":"Sirris suspension Triangle for R46 Shock | For Surron Ultra Bee","description":"\u003cp\u003eFor guaranteed fitment on your Surron Ultra Bee, we highly recommend the Sirris rear triangle installed during the shock installation procedure. \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-ccp-charstyle=\"List Paragraph\" class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed GrammarErrorHighlight SCXW12300337 BCX4\"\u003e\u003cstrong\u003eStock Ultra Bee triangle fitment:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003eThe Sirris Shock is designed to offer the maximum possible piston size and still fit within the stock linkage. Tolerances on each stock Ultra Bee vary. Light contact between spring OD and stock triangle may occur. We highly recommend our higher clearance triangle to prevent this.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-ccp-charstyle=\"List Paragraph\" class=\"NormalTextRun SCXW12300337 BCX4\"\u003e\u003cstrong\u003eAftermarket Ultra Bee triangle fitment:\u003c\/strong\u003e S\u003c\/span\u003e\u003cspan data-ccp-charstyle=\"List Paragraph\" class=\"NormalTextRun SCXW12300337 BCX4\"\u003eome aftermarket triangle links may have significant interference that could damage the shock and\/or triangle. \u003c\/span\u003e\u003cspan data-ccp-charstyle=\"List Paragraph\" class=\"NormalTextRun SCXW12300337 BCX4\"\u003eI\u003c\/span\u003e\u003cspan data-ccp-charstyle=\"List Paragraph\" class=\"NormalTextRun SCXW12300337 BCX4\"\u003et’s\u003c\/span\u003e\u003cspan data-ccp-charstyle=\"List Paragraph\" class=\"NormalTextRun SCXW12300337 BCX4\"\u003e \u003c\/span\u003e\u003cspan data-ccp-charstyle=\"List Paragraph\" class=\"NormalTextRun SCXW12300337 BCX4\"\u003eimportant to check clearance as you assemble and cycle the suspension.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sirris Store","offers":[{"title":"Black","offer_id":51503119368482,"sku":"600-62-001-XXX-02  SIRRIS UB AM TRIANGLE","price":119.0,"currency_code":"USD","in_stock":false},{"title":"Gold","offer_id":51503119401250,"sku":"600-62-001-XXX-05, SIRRIS UB AM TRIANGLE, GOLD","price":119.0,"currency_code":"USD","in_stock":false},{"title":"Blue","offer_id":51503119434018,"sku":"600-62-001-XXX-04, SIRRIS UB AM TRIANGLE, BLUE","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-triangle-red-allcolors.jpg?v=1775673780"},{"product_id":"sirris-f43-cmx-220mm-tool-free-lsc-for-e-ride-pro-ss-2-0","title":"Sirris F43 220mm Fork | CMX Tune | Tool free LSC | E-Ride Pro SS 2.0","description":"\u003ch2\u003eSirris F43 CMX 220mm Tool-Free LSC Fork | By Sirris Suspension | For E-Ride Pro SS 2.0\u003c\/h2\u003e\n\u003ch3\u003eBuilt to Dominate Any Terrain, Any Time\u003c\/h3\u003e\n\u003cp\u003eAt REV Rides we spend a lot of time helping riders upgrade suspension on compact e-moto platforms, and the \u003cstrong\u003eSirris F43 CMX Fork\u003c\/strong\u003e is easily one of the most serious upgrades available for the \u003cstrong\u003eE-Ride Pro SS 2.0\u003c\/strong\u003e. This fork brings true motocross level suspension performance to a lightweight electric platform that was never meant to stay stock.\u003c\/p\u003e\n\u003cp\u003eThe F43 CMX combines an oversized \u003cstrong\u003e43mm upside-down race chassis\u003c\/strong\u003e with Sirris’ proprietary \u003cstrong\u003eCMX tuned closed cartridge damping system\u003c\/strong\u003e. The result is razor sharp handling, improved front end confidence, and consistent suspension control even when pushing harder on trails, tracks, or technical terrain. With \u003cstrong\u003e220mm of suspension travel\u003c\/strong\u003e, tool-free compression adjustment, and race-grade materials throughout, this fork dramatically improves the ride quality and capability of the SS 2.0.\u003c\/p\u003e\n\u003cp\u003eSirris built the F43 platform specifically for compact electric motos by taking their proven race fork architecture and resizing it for lighter bikes. The \u003cstrong\u003e775mm chassis length\u003c\/strong\u003e, oversized stanchions, and billet clamps create a stronger and more planted front end while maintaining agility and responsiveness. Everything about this design focuses on reducing flex, improving durability, and delivering predictable suspension performance when riders start pushing their bikes harder.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/n4_QaBwQrRE?si=6srx8KQMC7FEOymB\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eOversized Chassis Designed to Outperform\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e43mm hard chrome stanchions\u003c\/strong\u003e resist flex, dents, and wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7XXX series hard anodized uppers\u003c\/strong\u003e maximize strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e775mm extended fork length\u003c\/strong\u003e creates a longer and more stable front end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm travel\u003c\/strong\u003e delivers 20mm more suspension travel than stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet aluminum triple clamps\u003c\/strong\u003e increase stiffness and reduce twisting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm fork spacing\u003c\/strong\u003e allows nearly unlimited tire choices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect mount stem compatibility\u003c\/strong\u003e improves cockpit stiffness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra stiff chromoly race axle\u003c\/strong\u003e improves steering precision and front end feel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle style top cap\u003c\/strong\u003e improves steering bearing tension control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable caliper mounts and wheel spacers\u003c\/strong\u003e allow brake and wheel upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis design focuses on more than just stiffness. The F43 CMX is built to improve balance, absorb heavy impacts, and maintain long-term durability for riders pushing higher speeds and rougher terrain.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/y8ZjgHK3_Vc?si=3FkKGJa3XNa6oJMZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-block product-block--tab\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eRace Grade CMX Closed Cartridge Damping\u003c\/h3\u003e\n\u003cp\u003eAt the core of the fork is the \u003cstrong\u003eCMX tuned symmetrical closed cartridge damper\u003c\/strong\u003e. This advanced system provides professional level damping performance with independent oil circuits that separate lubrication and damping oil. This allows the fork to maintain consistent performance even during long aggressive riding sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMX Compact Motocross Tune\u003c\/strong\u003e designed for aggressive off-road riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSymmetrical closed cartridge design\u003c\/strong\u003e delivers fade-free damping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent oil circuits\u003c\/strong\u003e isolate damping and lubrication oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow pistons\u003c\/strong\u003e with fully tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic bottom-out control\u003c\/strong\u003e protects against harsh landings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard anodized internal components\u003c\/strong\u003e reduce wear and increase longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Daido bushings and NOK MX seals\u003c\/strong\u003e ensure smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe CMX tuning delivers a planted and predictable ride feel. From aggressive trail riding to high speed track laps, the fork remains composed and highly tunable for rider preference.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eTool-Free Compression Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe F43 CMX includes \u003cstrong\u003etool-free compression adjusters\u003c\/strong\u003e, allowing riders to quickly adjust suspension settings without tools. Nearly \u003cstrong\u003e30 clicks of external adjustment\u003c\/strong\u003e make it easy to dial in the fork for different terrain or riding styles.\u003c\/p\u003e\n\u003ch3\u003eDirect Mount Stem System\u003c\/h3\u003e\n\u003cp\u003eThe Sirris steerer tube and motorcycle-style top cap system are designed for \u003cstrong\u003edirect mount stems\u003c\/strong\u003e. This improves cockpit stiffness and keeps steering bearing torque consistent, similar to the systems used on full-size motocross bikes.\u003c\/p\u003e\n\u003cp\u003eThe stock \u003cstrong\u003eE-Ride Pro stem is not compatible\u003c\/strong\u003e because the Sirris steerer tube cannot be clamped. We recommend using a \u003cstrong\u003eWarp 9 direct mount stem\u003c\/strong\u003e or the \u003cstrong\u003eHeavy Hitter Adjustable Billet Display Mount by GritShift\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eOptional Drop Clamp for Big Wheel Builds\u003c\/h3\u003e\n\u003cp\u003eThe optional \u003cstrong\u003edrop clamp\u003c\/strong\u003e raises the front end an additional \u003cstrong\u003e25mm\u003c\/strong\u003e, extending fork length to approximately \u003cstrong\u003e800mm\u003c\/strong\u003e. This allows riders to run a \u003cstrong\u003e21 inch front wheel\u003c\/strong\u003e while maintaining proper bike balance when paired with longer rear suspension.\u003c\/p\u003e\n\u003ch3\u003eAxle and Brake Mount System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltra stiff chromoly axle improves steering precision\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow brake upgrades\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e220mm brake rotor setups\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll Sirris brake brackets are designed for 220mm rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Upside Down Fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel:\u003c\/strong\u003e 220 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 775 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Length with Drop Clamp:\u003c\/strong\u003e ~800 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Spacing:\u003c\/strong\u003e 178 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4 kg per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanchions:\u003c\/strong\u003e Ø43 mm high tensile steel, hard chrome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Tubes:\u003c\/strong\u003e Seamless 7050 aluminum, Type III hard anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop Outs:\u003c\/strong\u003e 6061 aluminum, Type II anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle:\u003c\/strong\u003e Ultra high tensile hard chromed axle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Clamps:\u003c\/strong\u003e Billet 6061 aluminum, Type II anodized (Black or Blue)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteer Tube:\u003c\/strong\u003e Seamless 7050 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Symmetrical adjustable closed cartridge with modified IFP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Adjustment:\u003c\/strong\u003e External tool-free LSC adjuster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e Dual side adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e NOK MX seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushings:\u003c\/strong\u003e Daido MX bushings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Guards:\u003c\/strong\u003e High impact PP wraparound guards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpring Rate Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140 to 180 lb rider weight, 3.6 \/ 3.2 springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180 to 220 lb rider weight, 3.6 \/ 3.6 springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRider weight ranges are calculated without riding gear. Approximately 15 pounds of riding gear is factored into the recommended range. Any upgrades such as heavier batteries or controllers should be added to rider weight when selecting spring rates.\u003c\/p\u003e\n\u003ch3\u003eCMX Tune Setup Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory settings are measured in clicks from the fully closed position\u003c\/li\u003e\n\u003cli\u003eBack adjusters out from the closed position to reach factory settings\u003c\/li\u003e\n\u003cli\u003eRiders near a weight cutoff may adjust preload to fine tune sag\u003c\/li\u003e\n\u003cli\u003eAggressive riders may benefit from moving up one spring class\u003c\/li\u003e\n\u003cli\u003eRiding style and terrain may require additional tuning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eE-Ride Pro SS 2.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho This Fork Is Perfect For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eE-Ride Pro riders building a \u003cstrong\u003erace ready or track focused setup\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrail riders who want \u003cstrong\u003emaximum front end stability and durability\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh power builds that need \u003cstrong\u003etrue motocross level suspension performance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"product-block product-block--tab\"\u003e\n\u003cdiv class=\"collapsibles-wrapper collapsibles-wrapper--border-bottom\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503119892770,"sku":"430-99-029-MED-02,  43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 2.0, MED, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503119925538,"sku":"sku-47205773181164","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503119958306,"sku":"430-99-29-MED-02-DR,  43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 2.0, MED, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":51503119991074,"sku":"sku-47205773213932","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51503120023842,"sku":"430-99-29-HVY-02, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 2.0, HVY, BLACK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51503120056610,"sku":"sku-47205773246700","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51503120089378,"sku":"430-99-029-HVY-02-DR, 43MM USD, 775MM X 220MM, 25MM OFFSET, E-RIDE PRO SS 2.0, HEAVY, BLACK, DROP CLAMP","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":51503120122146,"sku":"sku-47205773279468","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-EridePro-20-suspension-fork-front-CMX-black.jpg?v=1775673780"},{"product_id":"sirris-f43-243mm-fork-mx-tune-lsc-surron-ultra-bee","title":"Sirris F43 246mm Fork | MX Tune | LSC | Fork for Surron Ultra Bee","description":"\u003cp\u003eMX Tune is a motocross specific tune with balance, control, and bottoming resistance for the fastest speeds. It's firm suspension for maximum control and support for huge jumps, whoops and fast cornering. If you select the EBMX or MX spec, you’ll compromise a bit of trail plushness for improved bottoming resistance.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eRIDER WEIGHT SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSirris offers five weight ranges to choose from when selecting your MX Tune F43 fork. (\u003ci\u003eListed weight ranges are rider weight without riding gear on. \u003cmeta charset=\"utf-8\"\u003e15 pounds of riding gear is calculated into the weight ranges)\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e120 lbs - 160 lbs (Light = 4.4\/4.4 springs)\u003cbr\u003e\u003cspan class=\"Apple-tab-span\"\u003e\u003c\/span\u003e160 lbs - 200 lbs (Medium \u003cmeta charset=\"utf-8\"\u003e= 5.0\/4.8 springs)\u003cbr\u003e200 lbs - 240 lbs (Heavy \u003cmeta charset=\"utf-8\"\u003e= 5.4\/5.0 springs)\u003cbr\u003e240 lbs - 280 lbs (X Heavy \u003cmeta charset=\"utf-8\"\u003e= 5.4\/5.4 springs)\u003cbr\u003e280 lbs - 320 lbs (XX Heavy \u003cmeta charset=\"utf-8\"\u003e= 5.4\/5.4 springs)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFork spring rates listed above are left side\/right side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(34, 210, 226);\"\u003e\u003cstrong\u003eFORK SPECS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003cbr\u003eUpside down fork\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTravel\u003c\/strong\u003e\u003cbr\u003e246 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFree length\u003c\/strong\u003e\u003cbr\u003e856 mm\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFork weight, includes clamps and steerer\u003c\/strong\u003e\u003cbr\u003e22 lbs \/ 10kg\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStanchions\u003c\/strong\u003e\u003cbr\u003eØ43, high tensile steel with hard chrome\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOuter tubes\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDrop outs\u003c\/strong\u003e\u003cbr\u003eForged 6061 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTriple clamps\u003c\/strong\u003e\u003cbr\u003eForged 6061 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSteer tube\u003c\/strong\u003e \u003cbr\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003cbr\u003eSymmetrical, adjustable closed cartridge with spring backed IFP\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamper bodies\u003c\/strong\u003e\u003cbr\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRebound\u003c\/strong\u003e\u003cbr\u003eDual side high tensile steel spring, adjustable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003cbr\u003eExternal compression and rebound adjustment\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003cbr\u003eNBR \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuards\u003c\/strong\u003e\u003cbr\u003eHigh impact PP, 210-degree wraparound\u003c\/p\u003e","brand":"Sirris Store","offers":[{"title":"Light (120-160 lb) \/ MX \/ LSC","offer_id":51503120449826,"sku":"430-99-007-LTE-XX   43MM USD, 856MM X 246MM, 25MM OFFSET, MX, LTE","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (160-200 lb) \/ MX \/ LSC","offer_id":51503120482594,"sku":"430-99-007-MED-XX  43MM USD, 856MM X 246MM, 25MM OFFSET, MX, MED","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (200-240 lb) \/ MX \/ LSC","offer_id":51503120515362,"sku":"430-99-007-HVY-XX  43MM USD, 856MM X 246MM, 25MM OFFSET, MX, HVY","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"X Heavy (240-280 lb) \/ MX \/ LSC","offer_id":51503120548130,"sku":"430-99-007-1XH-XX   43MM USD, 856MM X 246MM, 25MM OFFSET, MX, 1XH","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"XX Heavy (280-320 lb) \/ MX \/ LSC","offer_id":51503120580898,"sku":"430-99-007-2XH-XX   43MM USD, 856MM X 246MM, 25MM OFFSET, MX, 2XH","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-suspension-fork-front-mx_d7c00f2a-8023-458d-bc66-301550a3bd0a.jpg?v=1775673788"},{"product_id":"sirris-f43-220mm-fork-cmx-tune-tool-free-lsc-altis-sigma","title":"Sirris F43 220mm Fork | CMX Tune | Tool free LSC | Altis sigma (Special Order)","description":"\u003cp\u003e\u003ca href=\"https:\/\/revrides.com\/pages\/contact\" class=\"button button--full-width button--primary\" style=\"color: white;\"\u003eContact Us To Order\u003c\/a\u003e\u003c\/p\u003e\n\u003ch1\u003eSirris F43 220mm Fork CMX Tune | Tool-Free LSC | Altis Sigma (Special Order)\u003c\/h1\u003e\n\u003ch2\u003ePush Your Altis Sigma Even Further\u003c\/h2\u003e\n\u003cp\u003eAt REV Rides we see riders pushing the Altis Sigma well beyond what the stock suspension was originally designed for. Once you start adding power upgrades, riding rough terrain harder, hitting larger jumps, or building a dedicated off-road machine, suspension quickly becomes one of the most noticeable limitations. The Sirris F43 CMX was designed for riders who want true motocross-level front suspension performance on their compact e-moto setup.\u003c\/p\u003e\n\u003cp\u003eThe F43 CMX combines an oversized 43mm upside-down race chassis with Sirris' proprietary CMX tuned closed cartridge damping system. The result is a front end that feels stronger, more planted, and more precise when speeds increase and terrain gets rough.\u003c\/p\u003e\n\u003cp\u003eFor riders building serious Altis Sigma setups, the improvement is immediate. You gain better steering precision, reduced chassis flex, improved impact absorption, and a more predictable feel through rough sections.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch2\u003eImportant Altis Sigma Fitment Notes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a special order item and requires contacting the REV Rides team before purchase to get you this set up just for you.\u003c\/strong\u003e This setup requires modifications and is intended for riders building more aggressive Altis Sigma setups. Please review all installation notes before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpecial order item currently only, contact REVRides.com\/contact before purchasing\u003c\/li\u003e\n\u003cli\u003eRequires drilling and tapping of certain things\u003c\/li\u003e\n\u003cli\u003eRequires modification of dust seals\u003c\/li\u003e\n\u003cli\u003eRequires a different handlebar clamp setup\u003c\/li\u003e\n\u003cli\u003eRequires a different headlight mount\u003c\/li\u003e\n\u003cli\u003eCreates a noticeably stiffer overall front-end setup compared to stock\u003c\/li\u003e\n\u003cli\u003eRecommended for experienced builders or riders performing larger custom builds we suggest a professional to do these modifications \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eOversized Chassis Designed to Outperform\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e43mm hard chrome stanchions\u003c\/strong\u003e resist flex, dents, and wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7XXX series hard anodized uppers\u003c\/strong\u003e maximize strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e775mm extended fork length\u003c\/strong\u003e creates a more planted front end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm travel\u003c\/strong\u003e delivers additional suspension capability over many stock compact e-moto forks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight billet aluminum clamps\u003c\/strong\u003e reduce twisting under load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm fork spacing\u003c\/strong\u003e opens tire options for dirt and street setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect mount stem compatibility\u003c\/strong\u003e improves steering feel and cockpit rigidity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-stiff chromoly axle\u003c\/strong\u003e increases front-end precision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle-style top cap system\u003c\/strong\u003e improves steering bearing consistency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable brake adapters and wheel spacers\u003c\/strong\u003e allow future wheel and brake upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is not simply a stiffer fork. It is designed to be stronger where it matters, absorb impacts more effectively, and maintain predictable handling during aggressive riding.\u003c\/p\u003e\n\u003ch2\u003eRace Grade CMX Closed Cartridge Damping\u003c\/h2\u003e\n\u003cp\u003eAt the heart of the F43 CMX is Sirris' CMX tuned symmetrical closed cartridge damping system. This advanced design separates lubrication oil from damping oil, helping maintain consistent performance under heavy use and extended riding sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCMX Compact Motocross Tune developed for aggressive compact e-moto riding\u003c\/li\u003e\n\u003cli\u003eTrue symmetrical closed cartridge design\u003c\/li\u003e\n\u003cli\u003eIndependent oil circuits for fade resistance\u003c\/li\u003e\n\u003cli\u003eHigh-flow pistons with tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003eHydraulic bottom-out protection\u003c\/li\u003e\n\u003cli\u003eHard anodized internal components reduce wear\u003c\/li\u003e\n\u003cli\u003ePremium Daido bushings\u003c\/li\u003e\n\u003cli\u003eNOK MX seals for smooth action and durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether riding rough trails, technical terrain, desert sections, or larger jump lines, the F43 CMX remains controlled and highly tunable.\u003c\/p\u003e\n\u003ch2\u003eTool-Free Compression Adjustment\u003c\/h2\u003e\n\u003cp\u003eThe F43 CMX features external tool-free compression adjustment with nearly 30 clicks of adjustment. Riders can quickly adapt suspension settings for changing terrain or riding style without carrying tools.\u003c\/p\u003e\n\u003ch2\u003eDirect Mount Stem System\u003c\/h2\u003e\n\u003cp\u003eThe Sirris steerer tube and motorcycle-style top cap system were designed around direct mount stem setups. This creates a stiffer cockpit feel while helping maintain consistent steering bearing tension similar to larger motocross platforms.\u003c\/p\u003e\n\u003ch2\u003eOptional Drop Clamp for Big Wheel Builds\u003c\/h2\u003e\n\u003cp\u003eThe optional drop clamp raises overall fork height approximately 25mm, extending total fork length to roughly 800mm. This helps riders running larger wheel setups maintain proper geometry and bike balance.\u003c\/p\u003e\n\u003ch2\u003eAxle and Brake Mount System\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-stiff chromoly axle improves steering precision\u003c\/li\u003e\n\u003cli\u003eReplaceable brake brackets allow future brake upgrades\u003c\/li\u003e\n\u003cli\u003eDesigned for 220mm brake rotor setups\u003c\/li\u003e\n\u003cli\u003eSirris brake brackets designed around 220mm rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Upside down fork\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel:\u003c\/strong\u003e 220mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Length:\u003c\/strong\u003e 775mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Length with Drop Clamp:\u003c\/strong\u003e Approximately 800mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Spacing:\u003c\/strong\u003e 178mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4kg per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanchions:\u003c\/strong\u003e Ø43mm high tensile steel, hard chrome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Tubes:\u003c\/strong\u003e Seamless 7050 aluminum, Type 3 hard anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop Outs:\u003c\/strong\u003e 6061 aluminum, Type 2 anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle:\u003c\/strong\u003e Ultra high tensile hard chromed axle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Clamps:\u003c\/strong\u003e Billet 6061 aluminum, Type 2 anodized coating, Black or Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteer Tube:\u003c\/strong\u003e Seamless 7050 aluminum, Type 2 anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Symmetrical adjustable closed cartridge with spring-backed modified IFP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper Bodies:\u003c\/strong\u003e Seamless 7050 aluminum, Type 3 hard anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Adjustment:\u003c\/strong\u003e External tool-free adjuster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e Adjustable dual-side high tensile spring system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e NOK MX seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushings:\u003c\/strong\u003e Daido MX bushings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork Guards:\u003c\/strong\u003e High impact PP, 210-degree wraparound\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpring Rate Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140-180 lb rider weight, 3.6 \/ 3.2 springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180-220 lb rider weight, 3.6 \/ 3.6 springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRider weight recommendations are based on body weight without riding gear. Sirris factors approximately 15 pounds of riding gear into these recommendations. Additional battery, controller, or accessory upgrades should be added into total rider system weight.\u003c\/p\u003e\n\u003ch2\u003eCMX Tune Setup Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFactory settings are measured in clicks from fully closed position\u003c\/li\u003e\n\u003cli\u003eFully close adjusters clockwise, then back out counter-clockwise to recommended starting settings\u003c\/li\u003e\n\u003cli\u003eRiders near spring weight cutoffs can fine tune with preload adjustments\u003c\/li\u003e\n\u003cli\u003eAggressive riders may prefer moving up one spring class with reduced preload\u003c\/li\u003e\n\u003cli\u003eTerrain and rider preference may require additional tuning\u003c\/li\u003e\n\u003cli\u003eExample: 160 lb rider with 20 lb of upgrades equals 180 lb total system weight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAltis Sigma\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho This Fork Is Perfect For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAltis Sigma riders building high-performance off-road setups\u003c\/li\u003e\n\u003cli\u003eTrail and desert riders wanting increased front-end stability\u003c\/li\u003e\n\u003cli\u003eJump riders and aggressive riders pushing beyond stock suspension limits\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris Store","offers":[{"title":"220mm - Medium (140-180lbs) \/ CMX - Standard Clamp \/ Black","offer_id":51654041731362,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Medium (140-180lbs) \/ CMX - Standard Clamp \/ Blue","offer_id":51654041764130,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Medium (140-180lbs) \/ CMX - Drop Clamp \/ Black","offer_id":51654041796898,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Medium (140-180lbs) \/ CMX - Drop Clamp \/ Blue","offer_id":51654041829666,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Black","offer_id":51654041862434,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Standard Clamp \/ Blue","offer_id":51654041895202,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Black","offer_id":51654041927970,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false},{"title":"220mm - Heavy (180-220 lb) \/ CMX - Drop Clamp \/ Blue","offer_id":51654041960738,"sku":null,"price":2350.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-F43-220-E-RIde-Pro-suspension-fork-3_4-CMX-black-drop-clamp_4476c89c-e83a-4f3e-8623-fa4cad5a5f43.webp?v=1773352753"},{"product_id":"r38-2sc-e-ride-pro-3-0","title":"Sirris R38 Rear Shock | E-Ride Pro 3.0","description":"\u003ch1\u003eSirris R38 Rear Shock | E-Ride Pro 3.0\u003c\/h1\u003e\n\u003ch2\u003eBig Moto Performance, Bombproof Durability\u003c\/h2\u003e\n\u003cp\u003eThe Sirris R38 brings true big-bike suspension technology to the E-Ride Pro 3.0. It uses proven internal architecture from the larger Sirris R46 platform, packaged into an oversized piggyback shock engineered for compact electric motos. When the trail gets rough, speeds climb, and repeated hits begin building heat, the R38 is designed to keep delivering controlled and consistent damping.\u003c\/p\u003e\n\u003cp\u003eSirris built the R38 for riders who need more support, traction, and adjustability than a typical small-platform shock can provide. Its high-flow internals move a massive amount of oil, helping the shock respond quickly without giving up control during hard riding. The result is a planted rear end with the moto-level feel and consistency normally associated with full-size motocross suspension.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The stock E-Ride Pro linkage will not work with the Sirris R38 shock. Sirris partnered with Prickly Motorsports to develop an R38-specific linkage, which is sold separately. The custom linkage provides the correct fitment and geometry for the 289 x 78 mm shock while raising the rear of the bike by 25 mm.\u003c\/p\u003e\n\u003cp\u003eA CMX fork drop clamp can also be added to raise the front by an equivalent 25 mm. This helps riders create a balanced chassis setup when using the taller R38 rear suspension configuration.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/revrides.com\/products\/prickly-linkage-for-sirris-r38-e-ride-pro-sr-3-0\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003eLink to linkage rocker you need here!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eHigh-Flow CMX Damping\u003c\/h2\u003e\n\u003cp\u003eThe R38 shares its high-flow base valve cavity architecture with the larger R46. This design provides exceptional pressure balance, faster frequency response, and the oil flow needed for a controlled moto-style feel. Pro-level CMX, or Compact Motocross Tune, damping includes fully tunable compression and rebound circuits that remain cool and consistent under repeated hard hits.\u003c\/p\u003e\n\u003cp\u003eTwo Stage Compression, also called 2SC, provides independent high-speed and low-speed compression adjustment. Low-speed compression helps tune chassis movement during braking, acceleration, rolling terrain, and rider weight transfer. High-speed compression controls sharper impacts such as square edges, hard landings, rocks, and roots. The separate rebound adjustment lets riders control how quickly the shock recovers after compression.\u003c\/p\u003e\n\u003cp\u003eEach R38 is tuned specifically for its bike model and designed to pair with Sirris F43 CMX forks. Together, the shock and fork create a more balanced suspension package with improved traction, control, and confidence at speed.\u003c\/p\u003e\n\u003ch2\u003eRider Weight and Spring Options\u003c\/h2\u003e\n\u003cp\u003eSirris offers two spring ranges for the E-Ride Pro 3.0. The listed ranges are based on rider weight without riding gear. Sirris calculates an additional 15 pounds of riding gear into each recommended range.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e140 to 180 lb rider:\u003c\/strong\u003e Medium, 80 N\/mm spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e180 to 220 lb rider:\u003c\/strong\u003e Heavy, 90 N\/mm spring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Piggyback shock with steel spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 289 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 78 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.3 lb \/ 1.5 kg without spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression system:\u003c\/strong\u003e 2SC Two Stage Compression with independent high-speed and low-speed adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-speed compression:\u003c\/strong\u003e Tool-free adjustment, 18 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-speed compression:\u003c\/strong\u003e 24 clicks, adjusted with a 20 mm hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e Tool-free adjustment, 24 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring adjustment:\u003c\/strong\u003e Adjustable preload\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping tune:\u003c\/strong\u003e Pro-level CMX Compact Motocross Tune\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom-out system:\u003c\/strong\u003e MCU bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop-out system:\u003c\/strong\u003e Rubber bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e HNBR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReservoir\u003c\/h3\u003e\n\u003cp\u003eThe reservoir is designed around the large 16 mm shaft and its high oil-displacement requirements. An R46-spec internal floating piston system manages shaft displacement with precision, helping maintain a consistent damping feel during repeated hard impacts and high-heat riding.\u003c\/p\u003e\n\u003ch3\u003eShaft\u003c\/h3\u003e\n\u003cp\u003eThe R38 uses the same shaft as the larger R46. Its massive 16 mm induction heat-treated hollow shaft combines structural strength with increased oil flow through the main piston for true moto-level damping performance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside diameter:\u003c\/strong\u003e 16 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside diameter:\u003c\/strong\u003e 5.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Hollow, induction-hardened steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Hard chrome plated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShock Body\u003c\/h3\u003e\n\u003cp\u003eA smaller-diameter body, spring, retainer, and hardware package reduces the shock’s external size while preserving the oversized internal flow characteristics responsible for its ride quality.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Seamless 6061 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Type 3 hard anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e ACME\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMain Piston\u003c\/h3\u003e\n\u003cp\u003eThe 38 mm high-flow main piston uses true powersports architecture. It is slightly smaller than the R46 piston but follows the same high-flow design philosophy, providing a broad tuning range and consistent damping performance beyond typical shocks in this category.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 38 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC-machined 6061 billet aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Type 3 hard anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston band:\u003c\/strong\u003e Hard band\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpring Retainer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Seamless 6061 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Type 3 hard anodized coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e ACME\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment:\u003c\/strong\u003e Manual preload adjustment with locking feature\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBody Cap and Lower Eyelet\u003c\/h3\u003e\n\u003cp\u003eThe upper body cap is engineered for tighter chassis fitment without sacrificing internal oil-flow performance. The new lower eyelet fits smaller bike platforms while maintaining maximum rebound oil flow to the shaft and metering rod.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody-cap bearing:\u003c\/strong\u003e Ultra-durable chrome-plated, Teflon-lined spherical bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower-eyelet bearing:\u003c\/strong\u003e Ultra-durable chrome-plated, Teflon-lined spherical bearing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eE-Ride Pro 3.0\u003c\/li\u003e\n\u003cli\u003eRequires the Prickly Motorsports R38-specific linkage, sold separately\u003c\/li\u003e\n\u003cli style=\"font-weight: bold; font-style: italic; color: rgb(255, 42, 0);\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003eNot compatible with the stock E-Ride Pro lower linkage\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned to pair with Sirris F43 CMX forks\u003c\/li\u003e\n\u003cli\u003eOptional CMX fork drop clamp raises the front by 25 mm to match the rear height increase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest Fit for These Riders\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAggressive trail riders who need better heat management and damping consistency through repeated impacts\u003c\/li\u003e\n\u003cli\u003eMotocross-style riders looking for independent compression control, adjustable rebound, and stronger bottom-out support\u003c\/li\u003e\n\u003cli\u003eE-Ride Pro 3.0 owners building a balanced Sirris F43 CMX fork and R38 shock suspension package\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX \/ 2SC","offer_id":52187775861026,"sku":"238-99-004-MED-30, R38, E-RIDE PRO 3.0, MEDIUM","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX \/ 2SC","offer_id":52187775893794,"sku":"238-99-004-HVY-3.0, R38, E-RIDE PRO 3.0, HEAVY","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-R38-shock-front-eridepro-30.jpg?v=1784914408"},{"product_id":"prickly-linkage-for-sirris-r38-e-ride-pro-sr-3-0","title":"Prickly Linkage for Sirris R38 (E-Ride Pro SR \/ 3.0)","description":"\u003ch1\u003ePrickly Motorsports Sirris R38 Linkage | E-Ride Pro SR and 3.0\u003c\/h1\u003e\n\u003ch2\u003ePurpose-Built Rear Suspension Geometry\u003c\/h2\u003e\n\u003cp\u003eThe Prickly Sirris R38 Linkage is a purpose-built upgrade for installing the Sirris R38 rear shock on E-Ride Pro SR and 3.0 models. It replaces the factory lower linkage with the correct fitment and geometry required for the larger 289 x 78 mm R38 shock.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The stock E-Ride Pro lower linkage is not compatible with the Sirris R38 shock. This custom linkage is required for proper installation.\u003c\/p\u003e\n\u003cp\u003eThe revised geometry raises the rear of the bike by 25 mm, creating the clearance needed for the R38 while giving the chassis a taller, more aggressive stance. Riders looking to keep the front and rear height balanced can add a CMX fork drop clamp, which raises the front by an equivalent 25 mm.\u003c\/p\u003e\n\u003ch2\u003eBuilt for Hard Riding\u003c\/h2\u003e\n\u003cp\u003eEvery linkage is precision CNC machined in-house at Prickly Motorsports from billet aluminum. Oversized premium bearings provide dependable movement under load, while the hard anodized finish helps protect the linkage from wear, moisture, and demanding trail conditions. Prickly also applies waterproof grease at the factory, so the bearings arrive properly lubricated and ready for installation.\u003c\/p\u003e\n\u003cp\u003eThis is more than a shock adapter. It is a complete linkage solution engineered around the dimensions of the Sirris R38, helping riders upgrade their rear suspension without compromising fitment or chassis geometry.\u003c\/p\u003e\n\u003ch3\u003eTechnical Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Prickly Motorsports\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock compatibility:\u003c\/strong\u003e Sirris R38 rear shock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock size:\u003c\/strong\u003e 289 x 78 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear height increase:\u003c\/strong\u003e 25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC-machined billet aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Hard anodized for added protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Oversized premium bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Factory-applied waterproof grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional front-height correction:\u003c\/strong\u003e CMX fork drop clamp can raise the front by 25 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eE-Ride Pro SR\u003c\/li\u003e\n\u003cli\u003eE-Ride Pro SS 3.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho This Linkage Is For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRiders installing a 289 x 78 mm Sirris R38 rear shock\u003c\/li\u003e\n\u003cli\u003eAggressive trail and off-road riders who want durable billet construction and premium bearings\u003c\/li\u003e\n\u003cli\u003eE-Ride Pro owners building a taller, balanced suspension setup with the optional CMX fork drop clamp\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris Store","offers":[{"title":"Black","offer_id":52187777433890,"sku":"prickly-sirrisr38-linkage-black","price":125.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":52187777466658,"sku":"prickly-sirrisr38-linkage-raw","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/prickly-linkage-R38-eridepro-3.jpg?v=1784834471"},{"product_id":"r38-2sc-e-ride-pro-sr","title":"Sirris R38 Rear Shock for E Ride Pro SR","description":"\u003ch2 style=\"text-align: center;\"\u003eSirris R38 Rear Shock for E Ride Pro SR\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eBig moto performance. Bombproof durability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Sirris R38 rear shock brings proven, full-size motocross suspension technology to the E Ride Pro SR. It combines internal architecture shared with the larger Sirris R46 platform, a high-flow damping system, and an oversized chassis engineered to handle repeated hard hits, high temperatures, aggressive trail riding, and serious abuse.\u003c\/p\u003e\n\u003cp\u003eWhere smaller shocks can begin to fade, leak, or lose consistency under demanding riding, the R38 is designed to keep its damping controlled and predictable. Its pro-level CMX, or Compact Motocross Tune, provides the pressure balance, rapid response, traction, and support normally associated with much larger powersports suspension.\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/revrides.com\/products\/prickly-linkage-for-sirris-r38-e-ride-pro-sr-3-0\" title=\"E Ride Pro SR + Prickly linkage for Sirris R38 Shock\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003eLink to linkage rocker you need here!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpring Rate Options\u003c\/h3\u003e\n\u003cp\u003eSirris offers two spring-rate ranges for the E Ride Pro SR. Select the option using your body weight without riding gear. Sirris has already calculated 15 pounds of riding gear into the listed ranges.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140 to 180 lb rider, 90 N\/mm spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180 to 220 lb rider, 100 N\/mm spring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchitecture:\u003c\/strong\u003e Piggyback shock with steel spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 289 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 78 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.3 lb \/ 1.5 kg without spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom-out system:\u003c\/strong\u003e MCU bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop-out system:\u003c\/strong\u003e Rubber bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e HNBR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003e2SC Compression and Rebound Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe R38 uses Sirris 2SC, or Two Stage Compression, with independently adjustable high-speed and low-speed compression circuits. This gives riders more control over chassis movement, sharp impacts, jumps, braking bumps, and overall rear-wheel traction.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTool-free low-speed compression adjustment, 18 clicks\u003c\/li\u003e\n\u003cli\u003eHigh-speed compression adjustment, 24 clicks using a 20 mm hex\u003c\/li\u003e\n\u003cli\u003eTool-free rebound adjustment, 24 clicks\u003c\/li\u003e\n\u003cli\u003eAdjustable spring preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eHigh-Flow Damping Architecture\u003c\/h3\u003e\n\u003cp\u003eThe R38 shares the high-flow base-valve cavity architecture used in the larger Sirris R46. Its increased oil flow creates a genuine moto-level damping feel with better control and consistency. Fully tunable compression and rebound circuits help the shock remain cool and predictable during repeated impacts and demanding riding.\u003c\/p\u003e\n\u003cp\u003eThis high-flow design improves pressure balance and frequency response, allowing the shock to react quickly to changing terrain without becoming harsh or unsettled. Each R38 is tuned specifically for its intended bike model and is designed to pair with the Sirris F43 CMX fork for balanced suspension performance, dependable traction, and greater confidence at speed.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eReservoir\u003c\/h3\u003e\n\u003cp\u003eThe reservoir is designed around the large 16 mm shock shaft and its increased oil-displacement requirements. An R46-spec internal floating piston system precisely manages shaft displacement, helping maintain a consistent damping feel through repeated hard hits and high heat loads.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eShock Shaft\u003c\/h3\u003e\n\u003cp\u003eThe R38 uses the same shaft design as the R46. Its massive 16 mm induction heat-treated hollow steel shaft has a hard chrome finish for extreme structural strength and increased oil flow through the main piston.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e16 mm outside diameter\u003c\/li\u003e\n\u003cli\u003e5.5 mm inside diameter\u003c\/li\u003e\n\u003cli\u003eChrome-plated, induction-hardened steel\u003c\/li\u003e\n\u003cli\u003eHollow construction for high oil flow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eShock Body\u003c\/h3\u003e\n\u003cp\u003eA smaller-diameter body, spring, retainer, and hardware package allow the R38 to fit compact e-moto platforms while retaining the oversized internal flow characteristics responsible for its controlled ride quality.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeamless 6061 aluminum construction\u003c\/li\u003e\n\u003cli\u003eType III hard-anodized coating\u003c\/li\u003e\n\u003cli\u003eACME thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMain Piston and Piston Band\u003c\/h3\u003e\n\u003cp\u003eThe 38 mm high-flow main piston uses true powersports architecture. It is slightly smaller than the R46 piston but follows the same design philosophy, providing a wide tuning range and consistent damping performance beyond what is commonly found in this compact shock category.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCNC-machined 6061 billet aluminum piston\u003c\/li\u003e\n\u003cli\u003eType III hard-anodized coating\u003c\/li\u003e\n\u003cli\u003eHard piston band\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpring Retainer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeamless 6061 aluminum\u003c\/li\u003e\n\u003cli\u003eType III hard-anodized coating\u003c\/li\u003e\n\u003cli\u003eACME thread\u003c\/li\u003e\n\u003cli\u003eManual preload adjustment with locking feature\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eBody Cap and Lower Eyelet\u003c\/h3\u003e\n\u003cp\u003eThe upper body cap is engineered for tighter chassis clearance without restricting internal oil flow. A model-specific lower eyelet maintains maximum rebound oil flow to the shaft and metering rod while allowing the R38 to fit smaller e-moto platforms.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-durable chrome-plated spherical bearings\u003c\/li\u003e\n\u003cli\u003eTeflon-lined bearing surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eFitment and Required Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e E Ride Pro SR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired linkage:\u003c\/strong\u003e Sirris and Prickly R38-specific linkage, sold separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock size:\u003c\/strong\u003e 289 x 78 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear ride-height change:\u003c\/strong\u003e The required linkage raises the rear of the bike by 25 mm to provide clearance and optimized suspension geometry\u003c\/li\u003e\n\u003cli style=\"color: rgb(255, 42, 0);\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The stock E Ride Pro linkage will not work with the Sirris R38 shock. \u003ca href=\"https:\/\/revrides.com\/products\/prickly-linkage-for-sirris-r38-e-ride-pro-sr-3-0\" title=\"E Ride Pro SR Linkage for Sirris R38 rear shock\"\u003eClick here\u003c\/a\u003e for the required linkage.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional front-height correction:\u003c\/strong\u003e A CMX fork drop clamp can be added to raise the front by an equivalent 25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended fork pairing:\u003c\/strong\u003e Sirris F43 CMX fork\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhy Upgrade to the R38?\u003c\/h3\u003e\n\u003cp\u003eThe R38 stands out because Sirris did not simply scale up a lightweight bicycle shock. Its 16 mm hardened shaft, 38 mm high-flow piston, R46-spec reservoir system, separate high-speed and low-speed compression controls, and model-specific CMX damping tune give the E Ride Pro SR a more planted, controlled feel when the terrain gets fast or rough.\u003c\/p\u003e\n\u003cp\u003eFor riders pushing higher speeds, larger jumps, rough trails, or repeated hard impacts, the extra oil flow and heat management help reduce damping fade. The adjustable compression, rebound, and preload settings also allow the suspension to be dialed in for rider weight, terrain, and riding style instead of settling for a one-setting-fits-all shock.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eBest Fit for These Riders\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAggressive E Ride Pro SR riders who need better control through jumps, braking bumps, rocks, and repeated hard hits\u003c\/li\u003e\n\u003cli\u003eHeavier or faster riders who regularly overwhelm the consistency and heat capacity of smaller stock-style shocks\u003c\/li\u003e\n\u003cli\u003eRiders building a balanced compact motocross setup with the Sirris F43 CMX fork, R38-specific Prickly linkage, and optional CMX fork drop clamp\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris Store","offers":[{"title":"Medium (140-180 lb) \/ CMX \/ 2SC","offer_id":52187777499426,"sku":"238-99-004-MED-SR, R38, E-RIDE PRO SR, MEDIUM","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lb) \/ CMX \/ 2SC","offer_id":52187777532194,"sku":"238-99-004-HVY-SR, R38, E-RIDE PRO SR, HEAVY","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/sirris-R38-shock-front-eridepro-sr_f7f3490c-7dae-4c6e-a5d0-f78c0a96522d.jpg?v=1784824923"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/collections\/sirris-social-sharing-preview.webp?v=1779998350","url":"https:\/\/revrides.com\/collections\/sirris-suspension-e-moto-fork-shock-upgrades-for-surron-talaria-e-ride-pro.oembed?page=2","provider":"REVRides","version":"1.0","type":"link"}