SHIMANO RT-CL900 Lock Externo brake disc

With a focus on reducing the heat distortion of the disc brake rotor, the new disc brake rotor delivers quieter braking performance than ever before without compromising weight or heat dissipation. Features: - Quieter than ever, and superior, consistent braking performance on long, steep descents thanks to excellent heat dissipation - The new arm shape is more robust for quieter operation - Heat-dissipating coating increases performance - Centerlock - With external notches Specifications: - Outer diameter (mm): 160 - Lockring: With lockring (with external notches)