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My understanding of Campagnolo compatibility, which is a bit rusty, is that the change from 8 speed to 9 speed required a new freehub body. Basically you could run anything up to 8 speed on the old freehub, but if you wanted to run 9 speed (or 10 and 11 speed) you needed a new freehub with a different spline pattern.
Might be worth asking in the Campagnolo thread for confirmation of this though.
9 speed exa drive pic
Surely this wont fit..?
I basically want to fit a 9 speed system onto the wheel pictured.
Are the freehubs exchangeable with more modern wheels?
I may just end up using an 8 speed cassette with 9 speed spacers and perhaps lose a sprocket.
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