Bike Forums - View Single Post - Campag 8 speed cassette with 4 inner arms rather than 8 inner arms (splines)
Old 10-21-19, 12:33 PM
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Dave Mayer
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Campagnolo 8-speed cassettes do not fit on the newer 9/10/11/12 speed freehub bodies. What I mean by newer is the anything made in the last 20 years - with the deep freehub splines.

It is not just an issue of 4 versus 8 splines - the cog spline pattern is fundamentally different.
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