Originally Posted by
Road Fan
Regarding the wheel, the last thing I would mismatch is the spoke count. Some will and have without negative effects, but you can also just buy an old wheel with the correct rim and swap over the rim.
Also, if you really have 7-sprockets on that wheel, possibly it's really a Campy freewheel, not a Campy cassette. If so, the freewheel is a valuable part. You could Ebay it and then do something different.
The rear has a lockring just like any other freehub, and the spacers are all the same size. The owner has had it apart, trying to make an 8-sp cassette fit on it. The cogs slide right on, etc. It is definitely a Campy freehub, but 7sp. He tried an 8-sp cassette, and it wouldn't fit, but the wheel is a 130mm. If it was Shimano, it would need a spacer on that 130, but this Campy does not. I like the hub, but can't use it at 7sp.