BOX Two Prime 9 Cassette

Their most durable option in the Prime 9 series, the BOX Two Prime 9 cassette embraces a less-is-more philosophy to deliver 12-speed range without the added complexity or 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 lightweight alloy spidersOffers ultrawide ratio with consistent progressionsED Black finish delivers extra protection from the elements