{"product_id":"trx-shock-surron-ultra-bee","title":"PURE Racing TRX Rear Shock | Surron Ultra Bee","description":"\u003ch1 style=\"text-align: center;\"\u003ePURE Racing TRX Rear Shock | Surron Ultra Bee\u003c\/h1\u003e\n\u003cp\u003eThe PURE Racing TRX 673A rear shock brings precise damping control, improved traction, and stronger impact management to the Surron Ultra Bee. It installs directly in the stock location and includes a rider-selected coil spring, making it a serious suspension upgrade for trail riding, motocross tracks, and harder off-road use.\u003c\/p\u003e\n\u003cp\u003ePURE Racing built the TRX around a dual parallel oil system with separate, easy-to-reach compression and rebound controls. Both adjustments offer 19 clicks, giving riders a useful tuning range without making setup unnecessarily complicated. The blue adjuster controls compression damping, while the red adjuster controls rebound damping.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTrail and MX Tuning Options\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTrail tune:\u003c\/strong\u003e Controlled, supportive, and comfortable for most riders. This setup helps the Ultra Bee maintain traction over rocks, roots, braking bumps, and uneven terrain while reducing harsh feedback through the chassis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMX tune:\u003c\/strong\u003e A stiffer, more responsive tune designed to provide additional feedback and absorb larger impacts. It is the better choice for aggressive riders, jumps, faster track riding, and repeated hard hits.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eRecommended Balanced Suspension Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrail setup:\u003c\/strong\u003e TRAXION Trail 960N fork paired with the TRX Trail shock and a 500 lb coil spring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMX setup:\u003c\/strong\u003e TRAXION MX 1420N fork paired with the TRX MX shock and a 580 lb coil spring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTRX Construction and Performance\u003c\/h2\u003e\n\u003cp\u003eInside the TRX are 3D-printed waffle pistons positioned in the upper and lower chambers of the internal cartridges. These pistons support the compression and rebound circuits, helping the shock deliver a progressive, quiet, and controlled damping response.\u003c\/p\u003e\n\u003cp\u003ePrecision-honed inner cylinders are manufactured to a tolerance of ±0.01 mm. That level of accuracy reduces unwanted friction, promotes smooth damping movement, and helps the rear tire follow the ground more consistently when traction matters most.\u003c\/p\u003e\n\u003cp\u003eCustom oil and dust seals balance dependable sealing with low operating friction. This supports consistent oil flow through tens of thousands of suspension cycles. Advanced fluid dynamics further refine the damping response, while the link plate structure has been enhanced through FEM analysis for rigidity, fatigue resistance, and weight-efficient strength.\u003c\/p\u003e\n\u003cp\u003eFive-axis CNC-machined construction adds the precision and durability expected from a performance-focused Ultra Bee suspension component.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eName:\u003c\/strong\u003e TRX 673A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper:\u003c\/strong\u003e Dual parallel oil system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression adjustment:\u003c\/strong\u003e 19-stage adjustable, blue control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound adjustment:\u003c\/strong\u003e 19-stage adjustable, red control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable spring weights:\u003c\/strong\u003e 500 lb, 540 lb, 570 lb, and 630 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable tuning:\u003c\/strong\u003e Trail or MX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.1 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: center;\"\u003eFitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSurron Ultra Bee\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the stock rear shock\u003c\/li\u003e\n\u003cli\u003eUses the original Ultra Bee linkage plates and bolts\u003c\/li\u003e\n\u003cli\u003eNo additional installation parts are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: center;\"\u003eWhat Is Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePURE Racing TRX 673A rear shock\u003c\/li\u003e\n\u003cli\u003eCoil spring in the selected weight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: center;\"\u003eWho This Shock Is For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrail riders\u003c\/strong\u003e looking for better comfort, support, and rear-wheel traction on rough terrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMX and aggressive off-road riders\u003c\/strong\u003e who need firmer feedback and improved control through larger impacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance-focused Ultra Bee owners\u003c\/strong\u003e who want adjustable compression and rebound damping with direct stock-location fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe TRX 673A stands out through its precise internal construction, independently adjustable damping, and purpose-built Trail and MX tunes. For riders pushing the Surron Ultra Bee beyond casual use, it provides the tuning range and impact control needed to build a more balanced, predictable suspension setup.\u003c\/p\u003e","brand":"PURE RACING","offers":[{"title":"TR - Trail Valve Tune \/ 500LBS","offer_id":52449098006818,"sku":"673A-TR500","price":599.0,"currency_code":"USD","in_stock":true},{"title":"TR - Trail Valve Tune \/ 540LBS","offer_id":52449098039586,"sku":"673A-TR540","price":599.0,"currency_code":"USD","in_stock":true},{"title":"TR - Trail Valve Tune \/ 580LBS","offer_id":52449098072354,"sku":"673A-TR580","price":599.0,"currency_code":"USD","in_stock":false},{"title":"TR - Trail Valve Tune \/ 630LBS","offer_id":52449098105122,"sku":"673A-TR630","price":599.0,"currency_code":"USD","in_stock":false},{"title":"MX - Valve Tune \/ 540LBS","offer_id":52449098137890,"sku":"673A-MX540","price":599.0,"currency_code":"USD","in_stock":false},{"title":"MX - Valve Tune \/ 580LBS","offer_id":52449098170658,"sku":"673A-MX580","price":599.0,"currency_code":"USD","in_stock":true},{"title":"MX - Valve Tune \/ 630LBS","offer_id":52449098203426,"sku":"673A-MX630","price":599.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0093\/1672\/8892\/files\/DSC06075_dcaa888f-e799-46dc-aa44-1685f1965737.jpg?v=1788289675","url":"https:\/\/revrides.com\/products\/trx-shock-surron-ultra-bee","provider":"REVRides","version":"1.0","type":"link"}