EXT Ferro E-MX Fork for Sur-Ron, Talaria, E Ride Pro, Etc Developed by the team at EXT Racing Shox, the FERRO USD 36 is a premium 205mm travel upside-down fork designed to push the limits of e-moto performance. Built with cutting-edge suspension technology, this fork is a direct result of decades of motorsport innovation—now purpose-built for electric dirt bikes like the Sur-Ron Light Bee, Talaria MX3 / MX4, E-Ride Pro series, and more. Whether you're racing, freeriding, or bombing rugged backcountry terrain, the FERRO delivers unmatched stiffness, bottom-out control, and tuning flexibility. It’s built to elevate every part of your ride—from control under braking to support during jumps and landings.NOTICE: If you are running a stock wheel or a wheel that is not specifically designed for use with BOOST hubs you will need to install a rotor adaptor that is available HEREDont Forget to get your headset bearings Here.These do not come with Bearings. The Ultimate Inverted Fork Upgrade for High-Performance Electric Dirt Bikes Some bikes such as the Altis Sigma, SRPNT Moto, E-Ride Pro SS 3.0, and E-Ride Pro SR require a brake adapter that is in development. Contact us for support or pre-order solutions. Core Features 205mm of travel with 44mm offset 36mm Ø hard-chromed 42CrMo4 steel stanchions with Superfinish treatment 7075 aluminum dual-crown construction for maximum stiffness Boost hub spacing with 20mm floating axle for aftermarket wheel compatibility HS3 hybrid air spring: Dual positive + high-volume negative chamber for mid-stroke support High-flow 3-way damper with separate high/low-speed compression and rebound adjustments Large piston design with separate IFP + coil-energized HDRV valve Low hysteresis and no cavitation cartridge design Superfinish-coated inner tubes + aeronautical seals to reduce stiction Pressure release valves on both legs for quick air bleeds Sliding DU bushing system (CGB – Continuously Guided Bushing) for increased stiffness under side loads Post mount 200mm brake interface Total weight: 4000g (approx. 8.8 lbs) Why Choose the FERRO? When EXT Racing Shox saw the rise of high-torque electric motos, they answered with a fork designed from the ground up to handle the demands of today's fastest, heaviest e-motos. The FERRO uses race-proven tech from World Rally Championship suspension and adapts it into a fork that doesn’t compromise. The HS3 hybrid spring system gives you unreal support near sag and full control at bottom-out. The high-flow damper cartridge brings razor-sharp response and tuning capabilities typically reserved for top-level motorsports. Fork Structure & Tech Breakdown Dual Crown: CNC-machined 7075 upper crowns for high torsional rigidity DU Bushings: Oversized with long overlap for guidance and reduced flex Axle: Twin hex floating axle ensures perfect alignment and stiffness High Flow Cartridge: Large piston + HDRV valve + IFP system reduces lag, increases precision Includes in Box EXT FERRO USD 36 Fork Assembly Boost Rotor Adapter Axle + Crowns Optional Add-Ons Warp 9 Rotor Adapter – Required for stock Sur-Ron/Talaria/E-Ride Pro wheels Headset Bearings – Not included, required for install Head Tube Reinforcement Clamp – Recommended for older Sur-Ron models Fitment Sur-Ron Light Bee X Talaria MX3 / MX4 E-Ride Pro 2.0 / SS 3.0 / SR SRPNT Moto Ventus One 79 Bike Falcon Any e-moto using a 20mm axle and 110mm BOOST front hub spacing ⚠️ Fitment Notes & Required Adapters If using non-Boost 110mm wheels (like stock Sur-Ron, Talaria, or ERP wheels), you'll need a Warp 9 Rotor Adapter – available here Headset bearings are not included – Add them here Not plug-and-play with large brake calipers like Volar Sport Racing – reach out for a custom adapter Note: For full compatibility and rotor alignment, a rotor spacer or adapter may be required if using OEM wheels. We recommend the Warp 9 Rotor Adapter for best results.
