If the hub you have are not on the list below please do not buy one of these freehubs as it won't fit!!!
Also the End caps supplied may not fit your hub, they fit Novatec F172/272 (type A) or F482 hubs (type B2). i do not stock a full range of Novatec end caps as there are too many and the compability list would be cumbersome and confusing to say the least. Reuse your existing end caps.
(if you know the freehub fits another hub not listed then let me know please).
Novatec freehubs explained. All 11 speed shimano/sram freehub bodies come with a 1.85mm spacer to allow the use of 8/9/10 speed shimano/sram cassettes
notes on fitting. the end caps supplied only work with certain novatec hubs not all and not powertap hubs. If you are fitting the freehub to a power tap hub you must replace the outer seal on the supplied freehub with the one from your old powertap freehub due to the end cap differences.
Type A freehubs come in three forms and all run on a 12mm axle, have two 6901 bearing/3pawls;
Type B2 freehubs come in five forms all run on a on a 15mm axle, have 2 bearings and 4 pawls for the shimano 11 speed/XD freehub. Since the 4 pawl body fits in place of the 3 pawl body. You must use the spacer that comes with the 4 pawl body though as the spacer for the 3 pawl body is different.
These freehubs are comaptible with;
Type C freehub are for 8/9/10 speed Shimano/SRAM cassette run on a 10mm axle and fit
1) 6 pawl freehub body 11/12 speed XD driver
2) 6 pawl freehub body 8/9/10 speed Shimano
A 10 speed hub can be converted to 11 speed with with the relevant freehub body.
The older power tap hubs and novatec hubs with a 15mm axle may need the inner seal (between the freehub and hub shell) and from the old freehub to used in place of the new one as they are different.