Shimano Ultegra ICE-TECH CENTERLOCK - RT-CL800 - INTERNAL SERRATION w/LOCKRING

Quieter control for any terrain

With a focus on decreasing disc brake rotor heat deformation, the result of the new disc brake rotor is quieter than ever brake performance without sacrificing weight or heat dissipation.

Specifications
Quieter than ever, but with superb, consistent braking performance on any long, steep descents thanks to excellent heat dissipation
The new arm shape is more robust, leading to quieter operation.