Cassettes are the set of gears mounted to your bike's rear wheel. They slide onto the freehub and are secured with a splined lockring. We make a few different types of tools for these lockrings that cover more than 90% of modern cassettes. We have "S Group" tools for Shimano, SRAM and other small brands, we have a tool for 9 tooth Shimano cassettes with an external spline and tools for Campagnolo cassettes. We have versions optimized for thru axle hubs, socket style tools for use with a torque wrench and various handle options so you can have the best tool for your application.
