XD Driver/Freehub for SRAM 11/12 Speed MTB Cassettes, works on existing Stan's 3.30HD 135x12mm thru axles.
Includes: XD Freehub, spacer, drive side end cap, 3 6802 chrome steel bearings.
Note: The XD Drivers will come with a drive side end cap that is specific to the type of axle you are using. It will ONLY come with the drive side end cap.