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Campy experts - 9 speed on 8 speed hubs?(3 posts)

Campy experts - 9 speed on 8 speed hubs?jw25
Jul 24, 2003 11:58 AM
I have a set of Mavic Cosmics in great condition that I use for time trials. Only thing is, they're 8 speed Campy.
I know the 9 speed stuff has deeper splines, but did the steel cassettes change patterns? I could always machine the cogs down a bit.
For reference, since apaprently there were several 8 speed cassette splines also, these are close to Shimano in depth, just a bit off in diameter, though.
Thanks for any help or education.
re: Campy experts - 9 speed on 8 speed hubs?eddie m
Jul 25, 2003 1:54 PM
If you want to use 9s on an 8s wheel, you can replace the freehub body with a 9s body, or get a spacer kit from branford bike to respace an 8s cassette. The 9s cogs have deeper splines plus an added step, which could possibly be removed with a die grinder.
8s should be more than enough for tme trials. Otherwise, skip 9s and go all the way to 10s.
not accurate...C-40
Jul 26, 2003 7:48 PM
Old Mavic hubs don't have the option of changing the cassette body.

Go to and read up on the options. Think you'll find it's not worth the money.