EXT Arma E-MX Rear Shock Damper: Surron, Talaria, E Ride Pro

EXT Arma E-MX Rear Shock Damper is designed for Surron, Segway, Talaria, and E Ride Pro electric dirt bikes. The Arma E-MX by EXT is an easy-to-install, bolt-in rear shock suspension upgrade for enhanced performance. At Darwin EV, we include a 2-year warranty on all components.

EXT Arma E-MX Rear Shock Damper Compatibility:

• Surron Light Bee X/S
• Segway X160/X260
• Talaria Sting MX3/MX4/MX5
• Talaria X3
• E Ride Pro SS 2.0 / 3.0 / SR
• Ventus One
• 79Bike Falcon
• Altis Sigma
  

EXT Arma E-MX Rear Suspension Features:

• Fully-Customizable Hydraulic Setup: specific for each rider / bike
• Lightweight Spring Options: 400/450/500/550/600 lbs (lower weight available upon request)
• Full Length and Travel: 10.5" x 3.5" shock - don't use with 1.5″ riser linkage
• 4-way Adjustable Hydraulic Bottom-Out Control: LSC-HSC-LSR-HBC
• Easy Installation: direct, bolt-in, no additional hardware needed
• Dedicated Eyelet Design: spherical bearing on both ends
• Main Piston: high-flow 29mm / Valve Piston: 24mm
• Shaft: 14mm - 50% larger than most coils for handling large side-loading events
• Rebound Circuit: engineered to separate bump and rebound oil flow (ultra-low friction coating)
• Very Low Reservoir Pressure: maximum sensitivity and low cavitation (55 PSI)
• Very Low Hysteresis:  high dynamic response
• High Turbulent Flow for progressive dampening + mid stroke support
• Low-Friction Seal
• Thin Bottom-Out Bumper
• Washer for clearing debris
• Low-Profile Rebound Knob for easy spring swap

The Hydraulic Bottom-Out Circuit (HBC) is engineered for performance and control, featuring a wide range of adjustment capabilities. This prevents bottom-out issues while allowing riders to use softer spring rates. It also provides enhanced support plus end-stoke characteristics.

EXT Arma E-MX Rear Shock Damper Includes:

• rear shock damper
• spring coil
• mounting hardware (Surron)
• no additional hardware needed

General Spring Size Guide
Rider Weight	Spring Size
Up to 140 lbs	400
140-180 lbs	450
180-210 lbs	500
210-240 lbs	550
240+ lbs	600

Note: This chart is a general guide for choosing your spring size. For firmer or softer preference, select a spring weight size above or below. For the maximum weight limit, please refer to the Surron, Segway, or Talaria manufacturers guidance.

EXT Complete Suspension Package

Paired with the industry-leading EXT Ferro E-MX Fork, known for its reliability and performance, you can have one of the best upgrade suspension packages on the market to boost the performance of your electric dirt bike.

Shop EXT Ferro + Arma Suspension Package ›