Disco Freno Shimano RT-CL900 Center Lock Ice Technologies Freeza

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

• Quieter than ever, but with superb, consistent braking performance on any long, steep descent thanks to excellent heat dissipation.
• New arm shape is more robust, allowing for quieter operation
• Heat dissipating paint increases performance
• Brake disc size: 140 mm, 160 mm