Shimano

GRX BL-RX825 Brake Lever w/ BR-RX820 Hydraulic Disc Brake Caliper - Left/Front - Flat Mount

Shimano GRX BL-RX825 Brake Lever with BR-RX820 Hydraulic Disc Brake Caliper delivers the control, comfort, and reliability gravel riders demand. Built for mixed-terrain performance, this left/front brake setup combines a Di2-compatible lever with a powerful flat-mount caliper to create a system that feels precise on rough surfaces and steady on fast descents.

The BL-RX825 brake lever features an ergonomic design with raised hoods, ribbed texture, and an anti-slip coating for confident braking in all conditions. Its hood shape is optimized for use with flared handlebars, giving riders better leverage and a natural hand position when the terrain gets unpredictable.

Paired with the BR-RX820 2-piston flat mount caliper, this setup offers smooth, predictable braking with improved modulation and a quicker initial bite. The caliper’s wider pad clearance helps reduce noise, while the one-way bleed system makes maintenance faster and cleaner. Resin finned pads improve heat dissipation and consistent performance on long rides or steep descents.

• Designed for gravel and mixed-terrain riding
• Left/front hydraulic brake lever compatible with Di2 systems
• Anti-slip lever coating and textured hoods for confident control
• Optimized hood shape for flared handlebars
• BR-RX820 2-piston flat mount caliper with 10% wider pad clearance to minimize brake noise
• Includes finned L05A resin pads for improved cooling and performance
• Pre-assembled with bracket for 160mm rotor (compatible with 140/160mm)
• One-way bleed system simplifies maintenance

Whether tackling loose gravel descents or long endurance rides, the Shimano GRX BL-RX825 and BR-RX820 combination provides the braking confidence and control today’s gravel riders expect.