EXT Arma V4
EXT Arma V4
CORE FEATURES
- 3 way adjustable: LSC-HSC-LSR with new 5mm Allen adjustment for HSC for easier tuning
- Unique patent pending PSR technology to avoid harsh top out
- Improved adjustable HBC technology: Effective through last 20% of the stroke with more energy absorption due to new hydrostatic seal design
- 14mm diameter diamond like carbon (DLC) coated shaft. Most advanced engineering coating available for durability and low friction.
- New Spring Thrust Bearing for improved alignment and noise reduction.
- New large volume bladder design with very low reservoir pressure (55psi) to ensure maximum sensitivity.
- New high viscosity index oil to provide improved consistency over a wide range of operating temperatures.
- 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
- Full custom hydraulic setup that is bike and rider specific for each shock
- Low cavitation
- 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
- Price is for damper only. Springs are available on the product page and a 2nd spring can be purchased at a discounted rate.
*All Shocks are custom built and tuned for specific bike, rider weight and riding style. If you aren't sure about an option, just leave it blank and we'll get in touch if we have questions.
NOTE: Orders Requiring an HD spring (650lb+) will be one spring only. However, an additional HD spring may be purchased for $50.
Product Features
Product Features
Engineered with downhill focus in mind, the shock structure has seen a redesign in order to be more frame friendly, with metric and imperial sizing, and both classic eye to eye and trunnion mounts. 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 still have good support.
Fitment and Sizing
Fitment and Sizing
For installation tutorial videos, please see our page MTB Installation Videos or visit this LINK.
NOTICE: All dampers should be test fit to the frame and cycled though the travel to ensure frame compatibility and clearance. This is especially important when using aftermarket parts that modify stock geometry or linkage characteristics. We are not responsible for damage to frames where the shock fitment was not initially verified.
Bikes with Known Fitment Issues
- 2020-2023 Specialized Enduro
- 2021-22 Norco Range
- 2020 Specialized Stumpjumper (non EVO model)
- Intense Tazer
- 2019-2022 Specialized Demo
- Trek Rail (Will work with e-Storia)
- Evil Following V3
- Evil Offering V1
- Santa Cruz Hightower (All Versions)
PLEASE COMPLETE THE FOLLOWING RIDER INFORMATION: