Unior Cassette Lockring Tool For SRAM and Shimano Removing a cassette makes it easier to clean both your cassette and your bike. However, it requires a specific tool to remove it. The Unior Cassette Lockring Tool is compatible with all SRAM and Shimano-style lockrings and can be used in conjunction with a 1/2" ratchet or adjustable wrench and chain whip. Features Compatible with all SRAM and Shimano-style lockrings Use with a 1/2" ratchet or with an adjustable wrench Product number: 616065 | Unior | Cassette Lockring Tool Black