Shimano GRX Hydraulic Disc Brake Caliper BR-RX810 (Rear)

SHIMANO GRX, with its gravel-specific ergonomics, optimized gearing options,
rugged reliability, and a quiet and stable drivetrain, sets itself apart from the rest of the component world.
It isn’t a reworked set of road components. It represents a ground-up look at how cyclists want to explore their world.
SHIMANO GRX helps you eliminate excuses, instead urging you to try that rough sidetrack or ride that little bit longer. It offers you the option to Explore Beyond.

With a low-profile Flat Mount design, the SHIMANO GRX BR-RX810 hydraulic disc brakes provide greater control for mixed-terrain riding.

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