Box Three Prime 9 Speed Groupset - Single Shift - X-Wide 12-50T - 9 Speed algolia-ignore Only for use with Presta

Only for use with Presta valves and threaded cartridges

but they also come in a whole bunch of colours so you can get all matchy-matchy with your bike's colour scheme if you want

With the widespread use of dropper posts

Gum-X 3D: Three rubber compound to provide a combination of grip

Box Three Prime 9 Speed Groupset - Single Shift - X-Wide 12-50T - 9 Speed algolia-ignore Only for use with PrestaThe Prime 9 range of components from Box has made many people rethink what a 9 speed drivetrain is capable of. Providing riders with all the range of a 12 speed setup but without the complexity, weight, and excessive shifting, Prime 9 drivetrains are also far more affordable. You can ride them hard and not shed so many tears when something inevitably wears out or breaks. Box Three is their best all rounder drivetrain that offers excellent performance