EXT Arma MX Rear Shock

The EXT Arma MX is one of the highest-performing rear shocks available for lightweight e-moto platforms, delivering a massive upgrade in control, traction, responsiveness, and bottom-out resistance compared to OEM suspension.

This is the same shock setup we run on our own personal bikes, and it completely transforms how the bike rides. Paired with the EXT Ferro fork, the suspension performance becomes next-level with dramatically improved stability, confidence, and chassis balance.

The Arma MX is a true direct bolt-on upgrade with no additional hardware required for most supported bikes.

Key Features

4-Way Adjustable Damping

Fully tunable suspension performance with:

• Low-Speed Compression (LSC)
• High-Speed Compression (HSC)
• Low-Speed Rebound (LSR)
• Hydraulic Bottom-Out Control (HBC)

Hydraulic Bottom-Out Control

Enhanced HBC system provides increased end-stroke support while allowing riders to run softer spring rates without harsh bottom-outs.

Oversized Internal Components

• High-flow 29mm main piston
• 24mm valve piston
• Oversized 14mm shaft for increased durability during extreme side-loading conditions

Ultra-Low Friction Design

Engineered rebound circuit separates bump and rebound oil flow for improved responsiveness and reduced hysteresis.

Race-Level Suspension Tuning

Every shock is built with bike-specific hydraulic tuning for optimized performance and consistent damping characteristics.

Lightweight Spring Included

Available spring rates:

• 400lb
• 450lb
• 500lb
• 550lb
• 600lb

Lower spring rates may be available upon request.

Fitment

Direct bolt-on compatibility for:

• Talaria MX5
• Talaria MX3
• Talaria MX4
• Sur-Ron Light Bee X
• Segway X260
• E Ride Pro SS 1.0
• E Ride Pro SS 2.0
• E Ride Pro SS 3.0
• Talaria XXX
• Throne SRPNT
• Rerode R1
• 79 Bike Falcon Pro
• 79 Bike Falcon GT

Spring Rate Guide

For Talaria MX4 models, we generally recommend going one spring rate stiffer than the chart above.

Performance Benefits

The EXT Arma MX dramatically improves:

• Rear wheel traction and control
• Stability during aggressive riding
• Bottom-out resistance on jumps and hard impacts
• Mid-stroke support and chassis balance
• Rider confidence across technical terrain
• Overall suspension feel and responsiveness

This shock delivers a true race-level suspension experience for modern e-moto platforms.

Important Notes

• Talaria XXX fitment is supported, but suspension will feel stiffer due to no linkage system
• 79 Bike Falcon M requires additional shims for fitment
• Spring rate selection should include full riding gear weight
• Professional suspension setup and tuning recommended for best performance
• Limited-run special edition product with limited production availability
• Some spring rates and configurations may be built to order or require extended processing time (pre-order items may ship with delayed timelines)