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.
- Our 8 is Enough Cassette
- Cassette Compatible with HG Freehub Bodies
- Steel Stamped Cogs
- No Spiders
- Wide Ratio & Consistent Progression
- ED Black Protection
- View Prime 9 Drivetrain Compatibility Manual
- Why Prime 9?
- Gears: 11 - 13 - 15 - 18 - 22 - 28 - 34 - 42
- Material: Cold Rolled Steel
- Finish: ED Black
- Weight: 473g