Experience unmatched braking performance with the Shimano GRX BR-RX820 Rear Caliper, designed specifically for gravel, cyclocross, and adventure riding. Engineered with gravel-specific ergonomics, this flat mount hydraulic disc brake caliper combines precise control, smooth modulation, and powerful stopping power in all weather and terrain conditions.
The low-profile flat mount design keeps your bike sleek and aerodynamic, while Shimano’s advanced hydraulic system ensures consistent, reliable performance on rough gravel tracks and steep descents. Thanks to the easy and clean funnel bleeding system, setup and maintenance are simple, making it a hassle-free upgrade for serious gravel riders.
This listing includes the Shimano BR-RX820 rear caliper with brake pads (rotor and adapter not included). Built for rugged reliability, the GRX series stands apart with stable, quiet drivetrain integration and durable construction designed for off-road endurance.
- Genuine Shimano GRX BR-RX820 rear flat mount hydraulic disc brake caliper
- Optimised for gravel and cyclocross riding
- Low-profile flat mount design for a clean, modern look
- Powerful, reliable braking performance with excellent control and modulation
- Easy setup and maintenance with Shimano’s funnel bleeding system
- Includes brake pads (rotor and adapter sold separately)
- Disciplines: Gravel, Cyclocross, Road, Adventure
The Shimano GRX BR-RX820 hydraulic rear brake caliper is the ultimate choice for riders who demand precision braking, rugged dependability, and smooth performance across every gravel adventure.