Racer Revalveable and Rebuildable Designed for unparalleled repeatability Tuneable Gas Pressure External gas charging port allows quick adjustments to gas pressure for varying track conditions Non-Fading Very consistent gas pressures, even on rough tracks and during long races. 46mm Piston Damping curve allows for complete control of suspension at low shaft speeds without creating extreme forces at high shaft velocities 15mm Centerless Ground, Hard Chrome Plated, Gun-Drilled Piston Rod Precision surface eliminates piston rod flex, increasing valving consistency Deflective Disc Valving Provides consistency in production and performance throughout entire velocity range. Ring Shim Technology Allows for easy and precise preload adjustment of the valve stack Can Be Run Upside Down Can be mounted upside down with no change in rate to reduce unsprung weight Replaceable 1/2" I.D. Bearings 100% Dyno Tested and Serialized