Shimano GRX ST-RX400/BR-RX400 Hydraulic Disc Brake and Brake/Shift Lever - Left, 2x10-Speed, Flat Mount, Finned Resin Pads, Black

Upgrade your gravel riding experience with the GRX ST-RX400/BR-RX400 Hydraulic Disc Brake & Brake/Shift Lever (Left, 2x10 Speeds). Engineered specifically for gravel and adventure cycling, this high-performance hydraulic system combines durability, precise control, and ergonomic design to meet the demands of off-road enthusiasts. Materials & Construction: Built with materials, the GRX RX400 components feature a resilient black finish with flat mount calipers designed for lightweight, robust performance. The brake calipers utilize 's innovative ICE Technology, ensuring superior heat dissipation during extended descents or intense riding sessions. The hydraulic hose is crafted from durable, materials, providing consistent performance with a 1000mm length optimized for versatility. Performance & Engineering: Designed for 10-speed road drivetrains, the GRX RX400 shift/brake lever offers a smooth, light shifting operation comparable to top-tier systems. The dual control lever architecture allows comfortable, confident control over braking and shifting, even in the most rugged conditions. Adjustable reach lets riders customize the lever position for optimal fit and comfort, accommodating various hand sizes and riding styles. The pre-bled hydraulic system simplifies setup and maintenance, saving time and eliminating air bubbles for reliable, consistent braking power. Components & Technology: This left-side lever is compatible with FD-4700 and FD-RX400 front derailleurs and RD-RX400 and RD-4700 rear derailleurs, providing seamless integration for 2x10 gravel drivetrain setups. The anti-slip brake lever enhances control in wet or muddy conditions, while the easy-to-access bleed port and one-way bleed system streamline maintenance. The resin brake pads ensure quiet operation and effective stopping power across diverse terrains. Style & Use Case: With a sleek black aesthetic, the GRX RX400 hydraulic disc brak

• High-performance hydraulic disc brake and shift lever combo designed for gravel and adventure riding, featuring ICE Technology for superior heat dissipation during demanding rides.
• Constructed with durable, lightweight materials like aluminum and resin, providing reliable performance and ergonomic comfort for long-distance gravel riding and off-road adventures.
• Equipped with 's advanced 2x10 shifting components and technology, offering smooth, precise gear changes with the same light operation as top-tier systems, ensuring optimal control on varied terrains.
• Innovative features include tool-free reach adjustment for a custom fit to various hand sizes, and pre-bled, maintenance-friendly design with one-way bleed system for effortless setup and minimal downtime.
• Styled in sleek black with flat mount calipers, these hydraulic disc brakes are built to withstand mud, dust, and harsh conditions, making them ideal for rugged gravel, adventure, and cyclocross use cases.