Shimano

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

The Shimano GRX BL-RX610 Brake Lever with BR-RX410 Hydraulic Disc Brake Caliper delivers smooth, confident braking performance designed specifically for gravel and mixed-terrain riding. Built around Shimano’s proven hydraulic disc technology, this left/front setup combines refined modulation, reliable power, and comfort-focused ergonomics to keep riders in control no matter the surface.

The BL-RX610 lever features a textured hood and anti-slip coating that maintain a secure grip in all conditions, while its compact, gravel-optimized shape enhances comfort on long rides and over rough terrain. Paired with the BR-RX410 2-piston flat mount caliper, this system offers quiet operation, fast engagement, and easier maintenance thanks to Shimano’s One Way Bleeding system.

• Gravel-tuned control: Designed for single-chainring drivetrains with precise, consistent braking performance on varied terrain.
• Confident grip and comfort: Textured hood and anti-slip lever coating ensure control in wet or muddy conditions.
• Reduced noise and drag: Caliper features 10% wider pad clearance for quieter operation and less rubbing.
• Enhanced heat management: Includes L05A-RF resin pads with finned backplates for better heat dissipation on long descents.
• Easy maintenance: One Way Bleeding simplifies setup and service.
• Custom fit: Reach Adjust feature allows fine-tuning lever position for different hand sizes and riding styles.

Whether tackling steep gravel climbs or descending loose, technical trails, the Shimano GRX BL-RX610 / BR-RX410 hydraulic brake system offers the balanced power, quiet performance, and durable reliability that modern gravel riders demand.