Shimano Dura-Ace RT-CL900 180 mm internal Brake Disc

The Shimano Dura-Ace RT-CL900 180mm inner disc brake comes with a focus on decreasing disc thermal deformation, the result of the new disc brake is quieter performance without sacrificing weight or heat dissipation. The three-dimensionally optimised aluminium bracket is purposely designed in each and every dimension and achieves light weight and superb resistance to thermal distortion. This prevents the entire disc from deforming due to heat and reduces friction noise during driving.Features:Use: RoadQuieter than ever, but with superb, consistent braking performance on any long, steep descent thanks to excellent heat dissipationThe new arm shape is more robust, allowing for quieter operationHeat dissipating paint increases performanceSize: 180 mmWith internal toothed locking ring