Shimano GRX ST-RX810 Shift/Brake Lever with BR-RX810 Caliper

The Shimano GRX ST-RX810 Shift/Brake Lever with BR-RX810 Caliper is a gravel-focused hydraulic dual-control system engineered for precise 11-speed shifting and consistent braking performance across mixed and unpredictable terrain. Developed by Shimano as part of its GRX platform, it is designed specifically for riders who split time between pavement, gravel roads, and rough backcountry surfaces where control and reliability are critical.

The ST-RX810 lever is built with gravel-specific ergonomics that support long-distance comfort and stable handling in varied riding positions. The hood shape provides a secure, planted grip when riding on rough surfaces, while the textured contact points improve control in wet, dusty, or loose conditions. Shimano’s adjustable reach system allows the lever position to be fine-tuned to match hand size and cockpit setup, helping riders maintain consistent braking leverage and comfort over extended rides.

Shifting performance is based on Shimano’s established 11-speed mechanical road platform, refined for gravel use to ensure reliable and precise gear changes under load. The system delivers consistent shift action whether climbing loose grades, riding technical terrain, or accelerating on variable surfaces. This predictable behavior helps maintain cadence and control when conditions are constantly changing.

The BR-RX810 flat-mount hydraulic caliper provides strong, stable braking performance with refined modulation for traction-limited surfaces. Brake control remains smooth and progressive, allowing riders to manage speed accurately on steep or loose descents. ICE Technologies rotor compatibility helps dissipate heat during sustained braking efforts, improving consistency and reducing the risk of fade on long downhill sections. The mineral oil hydraulic system contributes to stable lever feel and reliable performance across a wide range of temperatures and weather conditions.

Together, the lever and caliper form an integrated gravel braking and shifting system focused on control, durability, and predictable performance over long distances. It is built for riders who require dependable function across mixed terrain, from remote gravel routes to endurance-focused riding and technical off-pavement conditions.

The Shimano GRX ST-RX810 Shift/Brake Lever with BR-RX810 Caliper is a gravel-specific hydraulic brake and 11-speed shifting system designed for precise control, ergonomic comfort, and consistent braking performance across mixed terrain.

Key Features

• Gravel Specific Ergonomic Lever Design- ST-RX810 hood shape with textured contact points for secure grip and stable control on rough terrain
  
• 11-Speed Mechanical Shifting Platform- Refined Shimano road architecture tuned for consistent, accurate shifting under load in mixed conditions
  
• Hydraulic Disc Brake Performance- BR-RX810 caliper delivers strong, predictable braking power with smooth modulation on loose surfaces
  
• Heat Management System- ICE Technologies compatibility helps dissipate heat and maintain braking consistency on long descents
  
• Adjustable Reach System- Tool-free lever reach adjustment allows precise fit tuning for improved comfort and braking efficiency