EXT Racing Shock Arma MX (E-MX Damper) Surron / Talaria Shock

Engineered with performance and control as primary objectives, the shock structure has seen a redesign in order to be more robust. The Hydraulic Bottom-Out Circuit (HBC) has been enhanced with a wider range of adjustment, in order to prevent bottom-out issues, while allowing riders to use softer spring rates and providing excellent support and end stoke characteristics.

The Arma MX includes the following features

  • 4 way adjustable: LSC-HSC-LSR-HBC (Hydraulic Bottom-Out Control)
  • High flow 29 mm main piston
  • 24 mm valve piston
  • 14 mm shaft (50% larger than most other coils on market to help deal with large side loading events)
  • Engineered rebound circuit to separate bump and rebound oil flow – Ultra low-friction coating
  • User adjustable HBC technology
  • Very low reservoir pressure for maximum sensitivity  and low cavitation(55 PSI)
  • Full custom hydraulic setup that is bike and rider specific for each shock
  • Very low hysteresis for high dynamic response
  • High turbulent flow for progressive dampening and mid stroke support
  • Low friction seal
  • Thinner bottom-out bumper and debris clearing washer
  • New low profile rebound knob for easy spring swap
  • Included with 1 light weight spring available in 400lb, 450lb, 500lb, 550lb or 600lbs (Lower options may be available upon request)
  • Comes with Sur Ron specific mounting hardware for easy bolt in instillation. 

*This is a special edition shock that will be built in limited runs.

Spring Guide
Rider Weight Spring
Up to 150 400
150 to 190 450
190-220 500
220-245 550
245+ 600

Note: This table is a general
guide. For firmer or softer preference
select a spring weight above or below.
Feel free to contact us with questions.

Warning: Please refer to the Sur Ron guidance regarding maximum weight limit for the bike. 

Style