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This guide is for cyclists seeking a reliable replacement for their Shimano ST-5700 right-hand brake and shift lever. The key benefit is restoring precise shifting and braking control with a genuine, durable Shimano part. A potential caveat is that this is a specific replacement part, requiring compatibility with your existing drivetrain. This assembly provides the main lever for the right-hand side, ensuring smooth operation and a direct replacement for a worn or damaged component, leveraging Shimano's reputation for quality cycling parts.
| Model Part Number | Y-6TH98020 |
|---|---|
| Brand | SHIMANO |
No, the Shimano ST-5700-L is specifically designed for 10-speed drivetrains. It is not compatible with 11-speed systems.
This part is for the right-hand main lever assembly only. You only need to replace it if the right-hand lever is damaged or malfunctioning. The left-hand lever operates independently.
No, this product is the lever assembly itself and does not include brake or shift cables and housing. These will need to be purchased separately if yours are worn or you are installing from scratch.
While it is designed for the 105 5700 series, it is generally compatible with other Shimano 10-speed road rear derailleurs. However, for guaranteed performance, using it with the full 5700 series is recommended. Compatibility with non-Shimano components is not guaranteed.
You will need to adjust the high and low limit screws on your rear derailleur and set the cable tension using the barrel adjusters on the lever or derailleur for precise shifting.
Typically, you will need Allen keys (hex wrenches) for handlebar clamp and cable fixing bolts, cable cutters, and potentially a torque wrench for proper tightening.
Check that the shift cable is properly tensioned. You may need to increase tension using the barrel adjuster on the lever or derailleur. Ensure the derailleur limit screws are correctly set.
Check that the shift cable is not too tight. You may need to decrease tension using the barrel adjuster. Ensure the derailleur hangar is straight.
Ensure the lever is securely tightened to the handlebar clamp. Check the brake cable tension; a loose cable can contribute to a loose lever feel. Inspect the lever pivot for debris or damage.
Inspect the shift cable and housing for any kinks, dirt, or damage. Clean and lubricate the cable or consider replacing the cable and housing. The internal mechanism of the lever may require servicing or replacement if cable issues are ruled out.
Setup:
Installation of the Shimano ST-5700-L right-hand main lever assembly typically involves removing the old lever, which includes disconnecting the brake and shift cables. The new assembly is then mounted to the handlebar, and new or existing cables are routed and tensioned. Proper adjustment of both the brakes and the derailleur is critical after installation to ensure optimal performance.
Compatibility:
This lever assembly is specifically designed for the Shimano 105 (5700 series) 10-speed road groupset. It is intended to replace the right-hand main lever. Ensure your existing drivetrain components (rear derailleur, cassette, shifters) are compatible with a 10-speed system and ideally are also from the 5700 series or a compatible Shimano 10-speed group.
Care:
To maintain the performance of your lever assembly:
