The BOX One Prime 9 Speed Cassette is the flagship model in the range, and even though the cogs are all-steel it barely tips the scales at 365 grams. This cassette will give you all the same range as your riding buddies on their 12-speed setups but you'll have to shift a whole lot less to find the right gear.

Who's this item for: This is for riders that have embraced the simplicity and lighter weight of a 9-speed setup and need a cassette to run with their Box Prime 9 drivetrain. Not intended for use on e-bikes.

Number of gears: This is a 9-speed cassette.

Weight: 365 grams

Materials / construction: Lightweight machined steel unibody mounted to an alloy carrier.

Cog-tooth span: 11 - 13 - 15 - 18 - 22 - 28 - 34 - 42 - 50t

Freehub mounting style: Mounts to standard Shimano style HG freehubs. Not compatible with XD or Microspline freehubs.

Other component compatibility: This cassette is compatible with Box 9-speed drivetrains only.

NOT suitable for use on e-bikes.