EXT Ferro E-Moto Surron/Talaria Fork


At EXT Racing Shox, we are constantly striving to develop new technologies that will meet the needs of even the most demanding riders. We are dedicated to progress and innovation, and are committed to providing the best possible solutions to the market. Our dedication to progress and innovation will ensure that our customers are always getting the best products available.

Since the growing worldwide success of electric dirt bikes, EXT Racing Shox saw the opportunity to use their decades-long knowledge of suspensions to create a custom solution to achieve the highest performance for their customers. As a result, they are proud to introduce the brand new FERRO USD 36, an upside-down 36mm stanchion fork. This fork is designed with hard heat-treated chromoly steel stanchions and a Superfinish surface treatment, 7000 series aluminium construction upper legs, and a 205mm travel design with dedicated triple clamps. All of these features make the core of the new 36mm USD fork, developed for minimum friction and high stiffness, and will take the E-MX line-up to the next level.


  • ∅36mm hard chromed steel stanchions (heat treated 42CrMo4) with Superfinish surface treatment
  • Dedicated triple clamp design uppers (7000 aluminium series)
  • HS3 system: twin positive air system ¬+ 1 large negative self-balancing air chamber, allows to get
    an optimum level of support through all the travel
  • Chromed steel air spring shaft with Superfinish surface treatment
  • High-flow 3-way adjustable cartridge with independent High/Low speed compression and rebound
  • External pressure air release system on both legs
  • Twin hexagonal floating axle, boost compatible ∅20mm
  • Air spring and cartridge radial guide system with bespoke aeronautical seals (minimize friction on
    side loads)
  • Large piston design for best damping control and separate IFP/coil energized compression valve
  • No cavitation and low hysteresis
  • Self-hydraulic cartridge bleeding
  • Dedicated Mobile Sliding DU guiding system with super-long static overlap (for maximum guidance
    and best torsional rigidity). (CGB Continuously Guided Bushing system, increases stiffness)
  • 205 mm of travel and 44 mm offset
  • 200 mm post mount brake
  • Weight 4000gr
  • Pressure release one way valves on both legs