EXT STORIA ARMA V4

Free Tuning and Mount Kits!

Custom Tuning included (worth £85)

We offer a calculated tuning service – using endless data acquired from hours of testing and data logging, we can make calculated and informed decisions on what settings, re-valving and modifications are suitable for you. Your suspension will be thoroughly tested with our dyno facilities and tailored to you and your riding style.

Find Custom Tuning Details Here

Free Mount Kits:

Mounting Hardware supplied when purchased, (worth up to £35).

 

Spring

Not supplied with shock.

Make the purchase for the shock, then we'll use the tuning data you submit to accurately calculate the best spring rate for you, before discussing with you and updating the order and sending a link for payment on the spring.
 

Specs

• PSR (Position Sensitive Rebound), a new unique hydraulic top-out system that eliminates harsh top out and improves sensitivity.
• Riders can now adjust high and low speed compression with a common multi-tool, needing only 5 mm and 4 mm Allen keys.
• Frequency dependent damping Adjustable HBC: Once Developed by EXT for motorsport and later introduced in MTB applications, the new HBC system is now more powerful and starts in the last 20% of the stroke. This allows for a lower spring rate choice for maximum compliance, traction, and control.
• No risk of cavitation: high turbulent flow valves keep damping forces independent from viscosity and temperature changes to perfect pressure balance, eliminate aeration and cavitation, all with very low hysteresis to improve dynamic response.
• New coatings: improved durability thanks to a new proprietary DLC coating of the chrome-moly steel shaft, and an innovative proprietary DHC tube coating process, both assuring maximum wear resistance.
• Oil EV2S, a high viscosity index fluid, and phenomenal viscosity ratio.
• Spring thrust bearings ensure alignment, prevent spring rub and minimize spring noise.
• Reservoir with large volume bladder design, inflated to 55 psi only
• More silent.
  

EXT say:

"Adding to an already legendary resume, EXT is proud to introduce the new Arma and Storia V4 Series. The V4 is specifically designed to raise the bar on what is possible in MTB damper performance technology. Don’t be fooled by the similar appearance to its V3 predecessor, for beneath the surface the V4 beautifully refines and improves what was already an industry game changer. Building off of their prestigious pedigree in motorsports racing, EXT has worked diligently to put out a damper that ensures its rightful place as innovative industry leaders in the highly competitive MTB marketplace.

The V4 not only retains and refines foundational aspects of the V3, such as its unique mid body damper characteristics, hydraulic bottom-out circuit and notable high speed control, while simultaneously addressing and integrating feedback from our riders. The V4 celebrates a position sensitive rebound hydraulic top out system, frequency dependent damping, an externally adjustable HBC and a steel DLC coated damper shaft. All of this and more coming in a stronger yet quieter package."

Links

User Manual
Service Pricing

Service Intervals

Action	Interval
Clean and Lubricate	Every Ride
Inspect for scratches to shafts, seals dents and other signs of wear	Every Ride
Check bushing and mounting bolt torque	Every 15hrs use
Race Condition Service	Every 50hrs of use / 6 months whichever comes first.
Non-Race Condition Service	Every 100hrs of use / 12 months whichever comes first.

Delivery

Please allow 5-7 working days for delivery on shocks in stock. Please contact us before ordering to confirm stock availability.