The SRAM Paceline Centrelock Rounded Disc Rotor incorporates the elegant design of the eTap AXS road groupsets and features a new brake track vent design for smooth, quiet braking performance.SRAM Paceline Centrelock Rounded Disc Rotor FeaturesDesigned for road usePaceline brake track offers quiet brake operationLockring not IncludedSRAM Paceline Centrelock Rounded Disc Rotor SpecificationsDiameter (Rotor):140mm, 160mmHub interface: Centre LockBolt material (RT): n/aColour (RT): Black/SilverRotor Type: Paceline Centrelock