BOX Three Prime 9 Cassette

Embracing a less-is-more philosophy, the sensible all-rounder BOX Three Prime 9 cassette delivers 12-speed range without the complexity of more gears or added weight.BOX Prime 9 technology offers the same range as a 12-speed drivetrain with fewer gears to shift through, reducing parts and weight while increasing durabilityAll cogs are stamped from steel; larger cogs are pinned to steel spidersOffers ultrawide ratio with consistent progressionsBOX Three series features additional holes in the cogs for weight savingsED Black finish delivers extra protection from the elements