Shimano Dura ACE RT-CL900 Center lock Rotor 140/160mm w/LockRing

· Includes lockring with internal serration for easy setup. · Mount style: Center Lock (includes lockring). With a focus on decreasing disc brake rotor heat deformation, the result of Shimano’s RT-CL900 disc brake rotor is quieter than ever brake performance without sacrificing weight or heat dissipation.