- Make sure this fits by entering your model number.
- Secures the lockring from turning by locking it to the dropout so that when the cranks are turned with the bike in low gear the pedaling force will actually break the lockring free
- Tool can also be used in reverse to install the lockring
- Used to remove the cassette lockring when bike shop resources are not available.
This fits your .
Stein Mini Cassette Lockring Driver