EXT Racing Shox Arma V4 Rear Shock, 225 x 75mm Stroke, Trunnion Mount

The new EXT Arma and Storia V4 Series—now available in our store! These shocks take the proven performance of the V3 and elevate it to new heights with innovative features designed for even better damping performance and control.

While the V4 may look similar to its predecessor, it’s packed with significant upgrades under the hood. It retains key elements like the mid-body damper, hydraulic bottom-out circuit, and exceptional high-speed control, while incorporating rider feedback to refine performance even further. New additions include a position-sensitive rebound system, frequency-dependent damping, an externally adjustable HBC (Hydraulic Bottom-Out Control), and a steel DLC-coated damper shaft for enhanced durability and reduced friction.

The result? A stronger, quieter shock that delivers smoother performance and more precise tuning options for serious riders looking to push their limits. Stop by to learn more or check out the V4 Series for yourself!

FEATURES

• 4 way adjustable (LSC-HSC-LSR-Lok 2.0 proprietary system)
• Unique patent pending PSR hydraulic top out technology to avoid harsh top-out while improving bike platform stability and predictability
• Adjustable Hydraulic Bottom-out Circuit (HBC) Technology: our end stroke damping technology that has revolutionized the MTB damper market has been refined even further ensures predictable end-stroke characteristics to allow the user full utilization of travel of the bike while virtually eliminating harsh rebound effects.
• LOK 2.0: optimized for pedaling but perfectly at home on every trail section due to an integrated threshold by-pass circuit.
• Large volume reservoir using a bladder design and very low reservoir pressure (55PSI) ensures maximum sensitivity
• Designed for Enduro / Trail riding
• Price is for damper only. Springs are sold separately
• Weight: 397 gr. (210×55 mm. Standard mount – without spring)

PLEASE LEAVE NOTES ON THE FOLLOWING INFORMATION BELOW WHEN CHECKING OUT

• V2 Spring Weight (If you are not sure of spring rate select the choose for me option and we will use the information provided to get you the right spring rate)
• Bike brand, model & year
• Bike size
• Rear Travel
• Rider Weight
• Rider level of aggressiveness (1 to 10) 1 = I just started riding bikes, 5 = I am an average biker and have no trouble getting a little air and making it down most trails but not racing 10 = My sponsors don't know that I am trying out this shock
• Desired Sag (%) (If you're not sure, leave this blank and EXT will calculate it for you.
• Rebound Preference Options ( Slow - Medium - Fast - Not Sure )

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)