Shimano GRX BR-RX810 Rear Hydraulic Disc Brake — Robust Gravel Performance with Precision Control

The Shimano GRX BR-RX810 Rear Hydraulic Disc Brake is engineered to deliver superior braking power and modulation for gravel and adventure cyclists navigating diverse, often unpredictable terrain. Built as a core component of Shimano’s gravel-focused GRX groupset, this rear brake combines durability, precision, and advanced hydraulic technology to meet the rigorous demands of off-road cycling.

Featuring a flat mount design, the BR-RX810 offers a sleek and secure installation on compatible frames. It comes with a fixing bolt engineered to accommodate mounting thicknesses up to 25mm, eliminating the need for additional adapters and ensuring a clean, reliable fit across a wide range of gravel bike frames. This design enhances structural stability and maintains optimal alignment for consistent braking performance.

At its core, the hydraulic braking mechanism is paired with Shimano’s L03A resin brake pads equipped with cooling fins. These fins play a crucial role in thermal management, efficiently dissipating heat generated during extended braking and steep descents. This results in reduced brake fade and consistent stopping power, essential for endurance and technical gravel rides.

The BR-RX810 excels in delivering smooth, controllable braking force with fine modulation, empowering riders to adjust their speed confidently on loose surfaces, steep climbs, or wet conditions. The system’s ergonomic design and robust construction ensure long-lasting performance with minimal maintenance, making it ideal for riders who demand reliability and precision over countless miles.

Engineered for gravel cyclists pushing the limits, the Shimano GRX BR-RX810 rear hydraulic disc brake embodies the perfect synergy of power, control, and resilience — providing peace of mind and exceptional performance on every adventure.