SHIMANO GRX Hydraulic Disc Brake BR-RX810 Rear Flat Mount

The SHIMANO GRX Hydraulic Disc Brake BR-RX810 Rear Flat Mount is built for riders who want dependable braking performance on gravel roads, mixed terrain, and long-distance adventures. Designed as part of Shimano’s GRX series, this rear hydraulic disc brake caliper delivers powerful and controlled stopping performance in different riding conditions. Whether you are riding on rough gravel paths, smooth roads, or challenging descents, the BR-RX810 ensures stable and confident braking every time. Its flat mount design provides a clean and modern setup while maintaining lightweight performance and excellent frame compatibility. Equipped with Shimano L03A resin brake pads with cooling fins, this brake caliper helps reduce heat buildup and maintain consistent braking performance during long rides. Built with Shimano’s trusted engineering, the GRX BR-RX810 is an ideal choice for gravel riders seeking reliable and responsive braking control.

Key Features

• Brake Type: Hydraulic disc brake system

• Position: Rear brake caliper

• Mount Type: Flat mount design

• Pad Type: L03A resin pads with cooling fins included

• Heat Management: Cooling fin design helps improve heat dissipation

• Performance: Smooth and controlled braking power

• Compatibility: Designed for Shimano GRX drivetrain systems

• Installation: Includes fixing bolts for 25mm mount thickness

• Design: Compact and lightweight construction

• Ride Use: Suitable for gravel, adventure, and endurance riding

Product Specifications

• Brand: Shimano

• Series: GRX

• Model: BR-RX810

• Brake Position: Rear

• Brake Mount Type: Flat Mount

• Brake System: Hydraulic Disc Brake

• Pad Model: L03A Resin Pad with Fin

• Mount Bolt Included: Yes

• Mount Thickness Support: 25mm

• Adapter Included: No

• Cooling Fins: Yes

• Material: High-quality alloy construction

Braking Performance & Heat Control

• The included L03A resin pads feature integrated cooling fins that help reduce heat during extended braking sessions

• Delivers stable braking performance on steep descents and long-distance rides

• Hydraulic braking system provides better modulation and improved rider control

• Designed for consistent stopping power even in changing terrain conditions

• Helps reduce brake fade during demanding rides

Easy Operation / Usage

• Install the brake caliper onto a compatible rear flat mount frame

• Use the included fixing bolts according to your frame thickness

• Connect with a compatible Shimano hydraulic brake system

• Align the caliper properly with the rotor for smooth operation

• Check brake response before riding

Why Choose This Product

• Trusted Shimano GRX performance for gravel and adventure riding

• Strong and reliable hydraulic braking control

• Efficient heat management for long rides

• Lightweight and compact design

• Consistent stopping power across different riding conditions

• Built for durability and rider confidence

In the Box

• 1 x Shimano GRX BR-RX810 Rear Hydraulic Disc Brake Caliper