Front Rotor Shimano SHIMANO GRX RT-CL800 S DISC BRAKE ROTOR WITH LOCKRING - 160MM CENTERLOCK 1.5MM SILVER part name: Front Rotorpart make model: ShimanoSHIMANO GRX RT-CL800 S DISC BRAKE ROTOR WITH LOCKRING - 160MM CENTERLOCK 1.5MM SILVERbike part approved: