Australian Manufactured Fits: GasGas , Husqvarna and KTM 65cc racers 2020 - 2023 Rear Shock Piston and Valving kit to suit all WP 65cc Shocks 2020-2023. Track tested with a wide range of rider accross rough terrain. The best modification for improved full stroke action, less spike and more control in the rebound damping. Kit Includes : -Nitrogen Gas Bladder kit - (Bronze Color only) -Piston fitted with Genuine KYB Band for optimimum seal and long life -12mm shim/piston mounting plates -Valving Shims (converted to a more conventional 12mm ID Shim) -Setting information to achieve 3 different level setting A (Firm),B,C (soft) level riders Clicker data and setup all included in instruction/setting sheet. Will require shock building experience or fitted by a professional suspension tech or mechanic.