BOX Three Prime 9 E-Bike Cassette

Built to withstand the rigors of e-bike riding, the BOX Three Prime 9 e-bike cassette is built with high gears that have more teeth. It offers the range of a 12-speed without the added complexity.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 durabilityAdding an extra tooth to each of the 3 highest gears provides increased durability and decreased wear by distributing the load over a larger areaAll 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