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EXT Suspension

EXT Arma MX EMX Rear Shock

EXT Arma MX EMX Rear Shock

Regular price $1,175.00 USD
Regular price Sale price $1,175.00 USD
Sale Sold out
Taxes included.
Spring Rate
Quantity

The EXT Arma MX EMX rear shock β€” a dedicated coil-over damper engineered for light electric MX bikes, built to handle the higher weight and off-road/MX-track use of e-bikes.

  • Newly designed head machined from solid 7075-T6 aluminum for increased resistance and reliability
  • Longer reservoir body for longer damper stroke at lower reservoir pressure β€” better low-friction sensitivity even at higher temperatures
  • Chromed steel shaft with proprietary low-friction coating for extra toughness
  • Dedicated eyelet design with spherical bearings for small-bump sensitivity, traction and comfort
  • Redesigned cover guiding with a strong negative spring for platform stability and harsh top-out protection
  • New high-flow piston design for improved sensitivity and tunability
  • New compression valve for a wider adjustability range and smoother, more consistent ride
  • Externally adjustable HBC (Hydraulic Bottom-Out Control) for increased bottom-out protection
  • Lightweight spring, selected by rider weight

Spring rate by rider weight: up to 140 lbs β€” 400 lbs Β· 140–180 lbs β€” 450 lbs Β· 180–210 lbs β€” 500 lbs Β· 210–240 lbs β€” 550 lbs Β· 240+ lbs β€” 600 lbs.

Manufacturer Model Compatible Notes
Sur-Ron LBX/S (all years) Yes Boost rotor spacer required
Talaria MX3/4, XXX, MX5 Yes Boost rotor spacer required; drop crown recommended for MX, flat for XXX
E-Ride Pro S/SS/2.0 Yes Boost rotor spacer required
E-Ride Pro 3.0 Yes EXT brake adaptor available
Ventus One/One+ Yes Boost rotor spacer required
79 Bike β€” Yes Boost rotor spacer required
Altis Sigma Sigma MX 100 Yes Direct fit
Rawrr Mantis / Mantis X No Not compatible
Zero XB No Not compatible
Rerode R1 / Ewatt 2.0 No Not compatible

Currently sold out at the manufacturer β€” pre-orders accepted, ETA mid-July. Authorized EXT-USA dealer.

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