Shimano GRX BR-RX400 Flat Mount Hydraulic Disc Brake

The Shimano GRX BR-RX400 hydraulic disc brake features a sleek, low-profile Flat Mount design that integrates seamlessly with modern gravel and mixed-terrain bikes. Its compact build enhances bike aesthetics while maintaining exceptional braking performance.

Greater Control on Mixed Terrain: Engineered specifically for gravel and adventure cycling, the BR-RX400 provides consistent and reliable stopping power across a variety of surfaces. Its precise modulation ensures better control when tackling challenging descents or uneven trails.

Advanced Heat Dissipation: With Ice Technologies, the brake caliper is designed to dissipate heat efficiently during prolonged braking, ensuring consistent performance even on long and steep descents. This feature enhances safety and confidence for riders on demanding routes.

Simple Maintenance with One-Way Bleeding: The One-Way Bleeding system simplifies brake maintenance, making it easier for riders to manage their braking system. This straightforward process reduces air bubbles in the system for consistent and responsive braking.

Built to handle the rigors of gravel riding, the GRX BR-RX400 disc brake inspires confidence, allowing riders to explore rougher terrains without hesitation.

We ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.