Formula TECH E39 E-Moto Fork | Sur-Ron, Talaria, E-Ride Pro & More

230mm Travel Front Suspension Upgrade

Italian-built control for hard trail riding, jumps, and lightweight e-moto abuse

The Formula TECH E39 E-Moto Fork is a serious front suspension upgrade for riders who are pushing their electric dirt bike harder than the stock fork was built for. Designed and assembled in Tuscany, Italy, the E39 brings together motocross-inspired strength, e-moto-specific tuning, and clean adjustability for Sur-Ron, Talaria, E-Ride Pro, Ventus, RFN, 79Bike, E-Boost, and similar lightweight electric dirt bike platforms.

With 230mm of travel, 39mm hard-chromed alloy stanchions, fully adjustable hydraulics, and a CNC-machined drop crown included, this fork is made for riders who want more front-end confidence on rough trails, bigger hits, technical descents, and aggressive off-road riding. The ride feel is smoother, more controlled, and more tunable than most stock MTB-style fork setups found on e-motos.

What makes the E39 stand out is how complete the package is. You get a dedicated axle, spacers, mounting hardware, fork protectors, yokes, and a 30mm CNC drop crown for 21 inch wheel setups. The fork is also fully rebuildable and customizable, so it can be serviced and tuned as your riding style changes.

Key Features

• 230mm of travel for aggressive off-road riding, hard landings, and rough terrain
• 39mm hard-chromed alloy stanchions for strength, precision, and smooth fork action
• CNC-machined triple clamp with drop crown included for added rigidity and a clean front-end setup
• Fully adjustable hydraulics with 32-click rebound and 22-click compression tuning
• Low-friction bushings and heavy-duty seals for long-lasting performance
• Anodized aluminum alloy outer tubes with forged lower feet
• Compatible with MTB brakes and Volar Sport Racing Brakes
• Dedicated axle and bushings for easier fitment with stock hubs
• Fully rebuildable and customizable for long-term service and tuning
• Weight: 6.8 kg complete with axle, crown, and hardware
• Brake Mount: 220mm standard radial mount

Spring Rate Tuning

Every rider is different, and the TECH E39 makes spring tuning simple. The fork ships with a Medium-rate spring installed, giving most riders a solid all-around setup right out of the box. For riders who want a softer or firmer feel, optional coil springs are available separately.

• Soft Spring EX-S: Better small-bump comfort and traction for tighter trails or technical terrain
• Hard Spring EX-H: Firmer support for bigger jumps, heavier riders, and more aggressive MX-style riding

Springs are sold separately. Swapping spring rate can make a big difference in how planted the front end feels, especially if your stock fork dives too much, feels harsh, or does not match your weight and riding style.

Technical Information

• Brand: Formula TECH Suspension
• Model: E39 E-Moto Fork
• Travel: 230mm
• Stanchion Size: 39mm
• Stanchion Material: Hard-chromed alloy
• Rebound Adjustment: 32 clicks
• Compression Adjustment: 22 clicks
• Brake Mount: 220mm standard radial mount
• Outer Tubes: Anodized aluminum alloy
• Lower Feet: Forged construction
• Included Crown: CNC drop crown, 30mm, for 21 inch wheels
• Installed Spring: Medium-rate coil spring
• Weight: 6.8 kg complete with axle, crown, and hardware
• Bearings: Headset bearings are not included

Fitment

• Sur-Ron Light Bee X
• Sur-Ron LBX
• Sur-Ron Ultra
• Talaria Sting MX3
• Talaria Sting MX4
• E-Ride Pro S
• E-Ride Pro SS up to 2.0
• Ventus One
• RFN Apollo
• 79Bike
• E-Boost
• Most MTB-derived front suspension e-moto platforms

Brake Adapter Note

This fork is not yet fully plug-and-play with some larger caliper setups found on the bikes below without the correct adapter.

• Altis Sigma
• SRPNT Moto
• E-Ride Pro SS 3.0, adapter now available here
• E-Ride Pro SR, adapter now available here

Adapters for additional setups are in development. For riders using Volar Sport Racing Brakes, REV Rides will be offering dedicated adapters soon. Reach out to request special-order options if you are building a higher-performance brake setup.

What’s Included

• TECH E39 Fork assembled with Medium spring
• CNC Drop Crown, 30mm, for 21 inch wheels
• Axle, spacers, and mounting hardware
• Fork protectors and yokes

Headset Bearing Note

Headset bearings are not included. We recommend purchasing a headset bearing kit when installing this fork so the front end goes together smoothly from day one.

• RFloXa bearing set
• Sur-Ron OEM bearing set

Best Fit For

• Riders upgrading from stock suspension for harder trail riding and bigger hits
• E-moto riders who want more front-end control, adjustability, and serviceability
• Sur-Ron, Talaria, E-Ride Pro, Ventus, RFN, 79Bike, and E-Boost riders building a more capable off-road setup

Final Word

The Formula TECH E39 Fork is one of the most capable suspension upgrades available for the new generation of lightweight electric dirt bikes. It gives you real travel, real adjustability, stronger hardware, and a more planted front end without jumping into an overcomplicated custom front-end build.

Do not forget to add headset bearings if your bike needs them. These forks do not include bearings, and starting with fresh bearings is the best way to keep the install clean and the steering smooth.

Open Box Return Policy

Open box items are guaranteed functional and in the stated condition. Covered by a 30-day functionality warranty. All sales are final unless the item is not as described or the incorrect item is received.