Shimano Nexus BR-C6000-R-DX Rear Roller Brake with 3/8 x 8.2mm Washer

- Shimano roller brake hub keeps essential braking parts away from water and road dirt, meaning less maintenance and better operation
- Cam roller mechanism provides strong and responsive braking that's easy to control
- Hub mounted - eliminates the need to external parts and uses dedicated braking surface
- Cooling fin to maintain optimum operating temperature
- Inner cable quick release