Brembo 09.9925.11 UV Coated Rear Disc Brake Rotor Environmentally friendly, solvent free UV coating offers superior protection of the disc, including braking plate surfaces; includes new intelligent marking location for immediate control of the minimum thickness High Carbon cast iron minimizes noise and vibration and provides maximum performance and enhanced driving comfort Includes a fixing screw kit with all the necessary hardware for simple, more efficient and safer installation Outside Diameter (mm) 320; Nominal TH (mm) 20