Cassette Lockring Tool - Unior - M3B17F800001
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Product Information
Full details
This Unior Cassette Lockring Tool (MPN: M3B17F800001) is for cyclists who need to service or replace their bicycle cassettes, particularly those with 12 mm through-axle hubs. Its key benefit is precise, secure cassette removal and installation across a wide range of popular drivetrain brands. A caveat is that it requires a 1/2"" ratchet for operation, which is sold separately.
All features
| Model Part Number | M3B17F800001 |
|---|---|
| Brand | Unior |
Extended Product Information
FAQs
What size ratchet do I need for this tool?
You need a 1/2"" drive ratchet. The Unior 190.1ABI is recommended for optimal performance.
Will this tool work with my 15mm through axle hub?
This specific tool is designed for hubs with a 12mm through axle. Ensure your hub standard matches the tool's specifications.
Can I use this tool for standard quick-release hubs?
No, this tool is specifically designed for hubs utilizing a 12mm through axle. Quick-release hubs typically use different lockring tools.
Which cassette brands are compatible?
It is compatible with Shimano®, SRAM® (including XD & XDR), Sun Tour®, Chris King®, and Sun Race®.
Does the guide pin make a difference?
Yes, the 12mm guide pin helps center the tool on the cassette lockring, ensuring a secure fit and preventing slippage or damage during use.
How do I clean and maintain the tool?
Clean with a dry or slightly damp cloth after use and store in a dry environment. Avoid harsh chemicals or prolonged exposure to moisture.
Troubleshooting
Tool does not fit the lockring
Verify the lockring is a compatible type (e.g., Shimano HG, SRAM XD/XDR) and ensure the tool's teeth are properly aligned with the lockring's splines. Confirm the hub uses a 12mm through axle.
Difficulty removing a tight lockring
Ensure you are using a quality 1/2"" drive ratchet with sufficient leverage. Apply steady, firm pressure. A small amount of penetrating oil applied to the lockring threads (if accessible) may help, but use sparingly and clean thoroughly afterward.
Tool slips during use
Check that the 12mm guide pin is fully seated in the lockring and that the tool's external splines are completely engaged with the lockring's splines. Ensure the tool is held firmly against the lockring.
Pros and Cons
Pros
- Ensures secure and precise cassette removal/installation on 12mm through-axle hubs.
- Broad compatibility with most major cassette and hub manufacturers.
- Integrated guide pin prevents slippage and protects components.
- Robust build quality suitable for frequent use.
Cons
- Requires a separate 1/2"" drive ratchet for operation.
- May not fit older or obscure hub standards without through-axles.
- Specific to cassette lockrings; not a general hub service tool.
Setup, Compatibility & Care
Setup: This tool is ready to use out of the box. Attach your 1/2"" drive ratchet to the tool's drive socket. Insert the tool's 12mm guide pin into the center hole of the cassette lockring. Ensure the tool's teeth fully engage the external splines of the lockring.
Compatibility: This tool is designed for bicycle hubs with a 12 mm through axle and compatible cassette lockrings. It supports cassettes from Shimano®, SRAM® (including XD & XDR), Sun Tour®, Chris King®, and Sun Race®.
Care: After use, clean the tool with a dry or slightly damp cloth to remove dirt and grease. Store in a dry place. Avoid prolonged exposure to moisture to prevent corrosion. Do not use harsh solvents.