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EXT Suspension

EXT Ferro EMX Fork

EXT Ferro EMX Fork

Regular price $1,795.00 USD
Regular price Sale price $1,795.00 USD
Sale Sold out
Taxes included.
Tune
Quantity

The EXT Ferro EMX fork (USD 36) — an inverted dual-crown MX-style fork purpose-built for light electric MX bikes, with the HS3 air system and a fully adjustable 3-way cartridge.

  • 36mm Ø hard-chromed steel stanchions (heat-treated 42CrMo4) with Superfinish surface treatment
  • Dedicated triple clamp uppers machined from 7000-series aluminum
  • HS3 air spring system: twin positive air chambers + 1 large self-balancing negative chamber for consistent support through the full travel range
  • Chromed steel air spring shaft with Superfinish treatment
  • High-flow 3-way adjustable cartridge with independent high/low-speed compression and rebound
  • External air pressure release valves on both legs to normalize pressure with ambient conditions
  • Twin hexagonal floating axle, Boost compatible, Ø20mm, for maximum torsional rigidity
  • Radial guide system with aeronautical seals to minimize dynamic friction under side loading
  • Large piston design with separate IFP/coil-energized compression valve — no cavitation, low hysteresis
  • Self-hydraulic cartridge bleeding
  • Continuously Guided Bushing (CGB) system with super-long static overlap for maximum stiffness
  • 205mm travel, 44mm offset for increased stability
  • Weight: ~4000g · Brake: post mount 200mm

Crown option: choose "Flat" crown for a 19" front wheel or "Drop" crown for a 21" front wheel.

Tuning: selected by rider weight (120–240 lbs) and feel — Plush or Firm.

Manufacturer Model Compatible Notes
Sur-Ron LBX/S (all years) Yes Boost rotor spacer required
Talaria MX3/4, XXX Yes Boost rotor spacer required; drop crown recommended for MX, flat for XXX
Talaria MX5 Yes Requires aftermarket wheel and brake
E-Ride Pro S/SS/2.0 Yes Boost rotor spacer required
E-Ride Pro 3.0 Yes EXT brake adaptor available (fits SR model too but not covered by warranty)
Ventus One/One+ Yes Boost rotor spacer required
79 Bike Yes Boost rotor spacer required
Rawrr Mantis / Mantis X Yes Boost rotor spacer required
Zero XB Yes Boost rotor spacer required
Rerode R1 / Ewatt 2.0 Yes Boost rotor spacer required
Altis Sigma Sigma MX 100 No Not compatible

Currently sold out at the manufacturer — pre-orders accepted, ETA early July. Authorized EXT-USA dealer.

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