Shimano RT-CL800 Lock Interno With Magnet brake disc

Experience unparalleled braking control with the SHIMANO RT-CL800 disc rotor. Engineered to decrease heat deformation, it delivers the quietest, most consistent performance ever, even on long, steep descents. The advanced ICE TECHNOLOGIES FREEZA construction rapidly dissipates heat, preventing brake fade and noise. A new, more robust arm shape further enhances quiet operation. Part of the Ultegra R8100 series, this lightweight rotor ensures superb braking without compromise. The CENTER LOCK system allows for quick, secure installation