Refined and re-refined, the VX3 cassette hub packs in all the features and durability you want and need in a hub. The design has been updated to a more resilient floating axle system, with the tried and true 14mm heat-treated chromoly male axle. The SDS driver system also allows you to easily switch between left or right-side drive without any additional parts. Ceramic bushings found inside the 9t driver unit eliminate any blown-out bearings, and spin directly on the axle creating room for increased axle thickness. Finally, the included nylon CR and DR hub guards keep your hub protected from grinds straight out of the box.