Best current price£279.99from Condor Cycles
Shopping.co.uk recommended and popular offers
Condor Cycles£279.99Visit shop Shimano Grx-610 12-Speed Sti Gear Lever & Grx-400 Brake Caliper Kit
Visit shop1 offer from £279.99
View price history by clicking the chart icon.
The Shimano GRX RX610 12-Speed STI Gear Lever & Brake Caliper Kit is designed for gravel riders seeking robust performance and control in varied conditions. It offers specialized ergonomics for gravel riding, optimized gearing, and reliable hydraulic disc braking. A potential caveat is that this kit is specified for left rear and right front brake setups, requiring separate purchase of the other side if a full front and rear system is needed.
| Model Part Number | RX6102LR |
|---|---|
| Brand | SHIMANO |
The kit contains the left-hand ST-RX610 STI (shift lever and hydraulic brake lever), the BR-RX400 flat mount rear brake caliper with pads, hydraulic hose, and mineral oil. Rotors and adapters are not included.
No, this specific kit configuration is for the left rear shift/brake lever and a rear brake caliper. You will need to purchase the corresponding right-hand STI lever and front brake caliper separately for a complete front and rear setup.
This Shimano GRX system uses Shimano's proprietary mineral oil. Do not use other types of hydraulic fluid, as it can damage the system.
While hydraulic brakes can sometimes be cross-compatible, it is highly recommended to use Shimano GRX shifters with a compatible Shimano GRX rear derailleur and cassette for optimal 12-speed performance. Using components from different brands may lead to poor shifting or compatibility issues.
The frequency depends on riding conditions and usage, but a general recommendation is to bleed the brakes annually or when you notice a spongy lever feel or reduced braking performance.
The GRX ergonomics feature a higher brake lever axis and a curved lever shape designed to improve grip, confidence, and comfort on rough and uneven surfaces common in gravel riding.
The hydraulic brake system likely needs to be bled. Ensure you are using Shimano mineral oil and follow the correct bleeding procedure. Check for any leaks in the hose or fittings.
Verify that the derailleur, cassette, and chain are compatible 12-speed GRX components. Check cable tension and derailleur alignment. Ensure the shifter cable is clean and moving freely.
This can be caused by contaminated pads or rotors. Clean rotors with isopropyl alcohol. Inspect brake pads for wear and replace if necessary. Ensure proper rotor and caliper alignment.
Check for any obstructions or damage to the lever mechanism. Ensure hydraulic fluid level is adequate. If the issue persists, professional servicing may be required.
Setup: Installation of the Shimano GRX RX610 STI and brake caliper kit requires mechanical expertise, particularly for hydraulic brake systems. This includes mounting the STI lever to the handlebar, connecting the hydraulic hose, and bleeding the brake system with Shimano mineral oil to ensure proper function. Ensure compatibility with your existing drivetrain components, especially the rear derailleur and cassette, to achieve the intended 12-speed performance.
Compatibility: This kit is designed for 12-speed drivetrains. The ST-RX610 STI is specifically for the left rear shifting and right front braking configuration, while the BR-RX400 is a flat-mount rear caliper. Compatibility with other frame standards and component manufacturers should be verified. Rotors and adapters are sold separately and must be chosen based on your frame and hub specifications.
Care: Regularly clean the levers and calipers, especially after riding in wet or dirty conditions. Inspect hydraulic hoses for any signs of wear or damage. For optimal performance, periodic bleeding of the hydraulic brake system may be necessary. Refer to Shimano's official service documentation for detailed maintenance procedures.
