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
- SX-9980 feature stainless steel bearings and fits the 3.30 and 3.30Ti hubs
- For second generation or Type II rear hubs. These Type II hubs have steel end caps and the left end cap is not threaded