Shimano BRC3000 Int-M Roll 3/8×7.2mm RR

• 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