Shimano

GRX BL-RX610 Left Brake Lever with BR-RX410 Hydraulic Disc Brake Caliper - Black

The Shimano GRX BL-RX610 Left Brake Lever with BR-RX410 Hydraulic Disc Brake Caliper is built for riders who demand dependable braking and confident control across rough and variable terrain. Designed specifically for 1x gravel setups, it combines Shimano’s proven hydraulic performance with ergonomic features that enhance comfort and stability on long rides or technical descents.

The BL-RX610 lever features a textured hood and anti-slip coating, giving riders a secure grip even in rain, mud, or dust. Paired with the BR-RX410 flat mount 2-piston caliper, this setup delivers smooth, predictable stopping power and improved modulation so braking feels natural and consistent in every condition. The caliper’s wider pad clearance helps reduce noise, while the finned resin pads manage heat for fade-free performance on extended descents.

Maintenance is simplified with One Way Bleeding technology, making fluid changes and cleanup straightforward. A Reach Adjust feature allows fine-tuning lever position for a personalized fit, ensuring comfort for a wide range of hand sizes and riding styles.

• Optimized for single-chainring gravel drivetrains
• Anti-slip brake lever and textured hood for confident control in all conditions
• Flat mount 2-piston caliper with 10% wider pad clearance for quieter braking
• Includes L05A-RF finned resin pads for improved heat dissipation
• One Way Bleeding system simplifies maintenance
• Reach Adjust allows custom lever fit and feel