Shimano GRX BR-RX400 Rear Hydraulic Disc Brake Caliper

Engineered for gravel, adventure, and cyclocross riding, the Shimano GRX BR-RX400 rear hydraulic disc brake delivers reliable braking performance on rough and variable terrain. With advanced heat management and user-friendly maintenance features, it ensures you stay in control no matter the conditions.

Key Features

• All-Terrain Confidence: Never hesitate to tackle rough surfaces

• ICE TECHNOLOGIES: Excellent heat dissipation for consistent braking under load

• Flat Mount Design: Streamlined and modern integration with compatible frames

• Easy Setup & Maintenance: Convenient tool access simplifies installation and adjustments

• Quick Wheel Replacement: Minimal interference during rear wheel changes

• Easy Hose Joint System (J-Kit): Simplifies hose routing and connection

• Simple Bleeding System: ONE WAY BLEEDING makes brake maintenance fast, clean, and efficient

Ideal For:

• Gravel, cyclocross, and adventure road bikes

• Riders looking for consistent, powerful, and easy-to-maintain rear braking

• Cyclists who prioritize reliability, heat management, and hassle-free setup