Box Two Prime 9 Speed X-Wide Groupset - Multi Shift - 11-50T - 9 Speed Replace Images The air underneath the tread

The air underneath the tread patch and the CushCore insert next to the rim

heavy-duty bike degreaser

Weight: 272g

Holds bottles or items up to 80mm in diameter

With Blackburn's AnyValve pump head you don't need to fuss around with switching out the grommets

Box Two Prime 9 Speed X-Wide Groupset - Multi Shift - 11-50T - 9 Speed Replace Images The air underneath the treadThe Prime 9 range of components from Box has made many people rethink what a 9 speed drivetrain is capable of. Box Two is their most durable drivetrain that offers excellent performance, durability, and a competitive weight at a wallet friendly price point. Who's this item for: This is for riders looking for all the same range as a 12 speed setup with the simplicity and weight savings of a 9 speed setup. 9 speeds are great for All Mountain style