BBrembo 08.A863.11 UV Coated Rear Disc Brake Rotor ReviewbP PP Brembo 08.A863.11 UV Coated Rear Disc Brake Rotor PEnvironmentally 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 thicknessPOutside Diameter (mm) 320; Nominal TH (mm) 14; Min TH (mm) 12.