This is a Stan's Freehub Conversion Kit.
- XD kits convert mountain 3.30Ti, 3.30, and 3.30HD hubs to SRAM XD 1x11 speed respectively
- Instructions and hub axle determinations are available on-line @ www.notubes.com
- For second generation or Type II rear hubs. These Type II hubs have steel end caps and the left end cap is not threaded