Shimano ST-6870 clamp band unit - Y00S98040
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Product Information
Full details
This guide is for cyclists who need to replace or service the clamp band unit on their Shimano ST-6870 shifters. The key benefit is restoring proper shifter function and securing your brake/shift levers with a genuine Shimano part. A potential caveat is ensuring the specific size compatibility before purchase. This clamp band unit is a critical component for maintaining the integrity and performance of your Shimano road bike shifters.
All features
| Model Part Number | Y00S98040 |
|---|---|
| Brand | Shimano Spares |
Extended Product Information
FAQs
Is this part compatible with other Shimano shifter models?
No, this clamp band unit (Y00S98040) is specifically designed for the Shimano ST-6870 model only. Compatibility with other models is not guaranteed.
What size handlebars does this clamp band fit?
This clamp band unit is designed for handlebars with a diameter of 23.8-24.2 mm.
Do I need special tools to install this part?
While not always mandatory, a torque wrench is highly recommended to ensure the clamp band is tightened to the correct specification and avoid damaging your components.
How often should I check the tightness of the clamp band?
It is good practice to check the tightness of the clamp band periodically, especially after significant rides or if you notice any looseness in your shifter levers, as part of your regular bicycle maintenance.
What should I do if the clamp band is corroded?
If the clamp band is significantly corroded, it should be replaced to ensure a secure fit and prevent potential failure. Minor surface corrosion can sometimes be cleaned, but replacement is often the best course of action.
Where can I find the installation torque specification?
The precise torque specification can be found in the official Shimano service manual for the ST-6870 shifters, available on the Shimano technical documents website.
Troubleshooting
Shifter lever feels loose after installation
Ensure the clamp band is tightened to the manufacturer's recommended torque specification. Verify that no parts were omitted during installation and that the band is seated correctly.
Clamp band does not seem to fit correctly
Double-check that you have the correct model number (Y00S98040) for your ST-6870 shifters and that your handlebar diameter falls within the specified range (23.8-24.2 mm).
Difficulty removing old clamp band
Apply a small amount of penetrating oil if the band is seized. Use appropriate tools and gentle force, being careful not to damage the shifter body or handlebar.
Pros and Cons
Pros
- Ensures original fit and function for Shimano ST-6870 shifters.
- Made with durable materials for longevity.
- Restores secure mounting of shifter units.
- Direct replacement for damaged or lost clamp bands.
Cons
- Specific to ST-6870 models, not universally compatible.
- May require specialized tools for installation.
- Small part, easy to lose during maintenance.
Setup, Compatibility & Care
Compatibility: This clamp band unit (Y00S98040) is specifically designed for the Shimano ST-6870 shifter models. It is intended for handlebars with a diameter compatible with the 23.8-24.2 mm size range it secures. Always confirm your shifter model before purchasing.
Setup: Replacing the clamp band unit typically involves loosening the existing band, removing the shifter from the handlebar, and then installing the new band. The process requires careful attention to torque specifications to avoid damaging the shifter or handlebar. It is recommended to consult the official Shimano service manual for your ST-6870 shifters for detailed installation steps and torque values.
Care: As a small metal component, the clamp band unit requires minimal specific care beyond ensuring it is clean and free of corrosion. Periodically check the tightness of the clamp band during routine maintenance to ensure it remains secure.