BOX Four Cassette

The Box Four cassette adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All cogs are stamped from steel, given our durable black coating and then the larger cogs are pinned to each other with spacers for easy installation.

- Compatible with HG freehub bodies
- Steel stamped cogs
- No spiders
- Wide ratio and consistent progression
- ED black protection