Brembo 09.8842.21 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 Pillar Venting Technology improves cooling capacity and increases disc strength by over 40 percent Includes a fixing screw kit with all the necessary hardware for simple, more efficient and safer installation Outside Diameter (mm) 330; Nominal TH (mm) 22; Min TH (mm) 20