Shimano GRX BR-RX400 Front Hydraulic Disc Brake Caliper

Conquer gravel, cyclocross, and adventure rides with confidence using the Shimano GRX BR-RX400 front hydraulic disc brake caliper. Designed for consistent braking performance, excellent heat management, and easy maintenance, this brake keeps you in control across rough terrain.

Key Features

• All-Terrain Confidence: Tackle gravel, dirt, and uneven surfaces without hesitation

• ICE TECHNOLOGIES: Excellent heat dissipation for stable performance under heavy braking

• Flat Mount Design: Sleek, modern integration with compatible gravel and adventure frames

• Simple Setup & Maintenance: Convenient tool access for easy installation and adjustments

• Quick Wheel Replacement: Minimal interference when changing the front wheel

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

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

Ideal For:

• Front brake setups on gravel, cyclocross, or adventure road bikes

• Riders seeking reliable, powerful, and easy-to-maintain hydraulic braking

• Cyclists who value control, heat management, and effortless serviceability