The Box Three Prime 9 cassette delivers versatile performance for riders seeking wide gear range without complexity. Steel cogs are strategically pinned to lightweight alloy spiders, while weight-reducing holes minimize rotational mass. Prime 9 technology packs 12-speed range into a 9-cog setup, cutting shift points and simplifying drivetrain maintenance. Fewer components mean less weight, greater durability, and easier upkeep. Compatible with standard HG freehub bodies, this cassette balances climbing power and top-end speed with straightforward, reliable shifting.
Range: 11t - 50t
Color: Black
