RockShox Rear Shock Lock Piston Tool The Rockshox Rear Shock Lock Piston Tool is a specially manufactured tool that safely allows the lockout piston to be removed and installed during routine rear shock maintenence. The double ended tool has specific splines for each shock that will safely and securely aid in the removal and installation of the lockout piston. Features: Includes double ended tool with specific spline patterns to aid in the removal of lockout pistons Specifications: Compatibility: Deluxe RCT/Deluxe NUDE