VRP Shocks are Monotube Shocks with Deflective Disc valving. They feature all CNC Machined 6061 aluminum construction, with hard chrome steel shafts. They have an oil / gas separator piston and are filled with nitrogen, which expands less than compressed air, to keep them more consistent as the temperatures increase over the length of the run. The combination of this technology offers superior consistency, control, and reliability in our shocks. With all of our shocks, the valving can be easily changed, and they are fully serviceable.