Sram: The SRAM Centreline XR (CLX-R) rotor works in tandem with the SRAM eTap AXS drivetrain. Its designed specifically for road riding and to keep braking quiet at every stop. THINGS TO REMEMBER Streamlined form optimized for road use Centre Line track offers quiet brake operation Two-piece design reduces weight SPECIFICATIONS Diameter (Rotor):140mm, 160mmHub interface:6-bolt, Centre Lockbolt material (RT):n/a, Steel Colour (RT):n/a Rotor Type Centreline: 2-Piece