The SRAM CenterLine XR (CLX-R) rotor works in tandem with the SRAM eTap AXS™ drivetrain. It's designed specifically for road riding - and to keep braking quiet at every stop. FEATURES Streamlined form optimized for road use CenterLine track offers quiet brake operation Two-piece design reduces weight DESCRIPTION Brand: SRAM Model: RT-CLX-R-A1 Color: Black/Silver Material: Aluminum/Steel Lock Way: Centerlock Fit Bike Part: Road Bicycle Item Contain: 2pc 160mm CLX-R Rotor Note: Package without lock ring.