I'm looking at buying (second hand ) a set of wheels. The only problem is the rear is Campy compatible and I have Shimano 10 speed. Is it just a matter of changing the free wheel body or do I have to change the whole hub?
'''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Depends on who made the hub. If it's a Campy hub there probably aren't any Shimano compatible freehub bodies for it. If it's a Mavic or other after-market hub, you may be able to change the freehub body to a Shimano pattern.
There are adapters and spacer kits that respace Campy cassettes to Shimano spacing.
There is also a device called a Jtek that alters the derailleur throw to let you use a Campy cassette with Shimano everything else.