For anyone thinking about switching the freewheel hubs, I would be wary. I just did that with my new Easton Ascents/shimano freewheel. I contacted Easton and they said "No Problem" just buy the Campy freewheel hub and voilla(sp?) instant campy. Now I am having major problems, I wish I could get more specific but I am trying to figure out whats going wrong. Let's just say there is chain rub on the spokes, frame, custom spacers and it my new campy group just doesn't feel right....as of now I am thinking of getting a new set of either mavic or campy wheels already built with the campy hub and putting back the shimano hub on my eastons and use those for another bike I have(I got a really good deal on them so I want to keep them). At any rate I should know better...whenever you hear those words"No Problem" run, run away.......if anyone is interested I will post when and if I get my problem fixed and how