Experience a new level of control and confidence on gravel and mixed terrain with the Shimano GRX ST-RX400 Disc Brake Set, a reliable and ergonomic solution for a versatile drivetrain.

The Shimano GRX ST-RX400 / BR-RX400 Disc Brake Set is the definitive solution for a complete, high-performance front braking and shifting system for your gravel bike. Meticulously engineered for the unique demands of off-road riding, the ST-RX400 lever features an enhanced ergonomic design with a raised hood and textured surface for a secure and comfortable grip over rough terrain. The BR-RX400 caliper delivers powerful and consistent hydraulic braking, ensuring confident stopping power in all weather conditions. This unit comes pre-bled and is ready to install, providing an immediate upgrade in control and reliability for any 10-speed GRX drivetrain.

• Complete front hydraulic disc brake set includes lever, caliper, and hose.
• Ergonomic GRX-specific lever and hood design for a secure grip on rough terrain.
• Powerful BR-RX400 caliper provides consistent, all-weather braking performance.
• Pre-bled system for a quick and simple installation.
• A cornerstone component of the reliable 10-speed Shimano GRX ecosystem.