Collection: Cassettes & Freewheels

Cassettes are the rear gears on modern bikes (post-1988). We carry both 8-speed and 9-speed Shimano cassettes with long-wearing steel cogs, but for complete bike builds, can get 10 and 11 speeders, too.

To install and remove, you need skills and tools. When we assemble your bike, we do that for you.

Here's a gear inch calculator chart for those that think in gear inches