I’ve just bought some new Zonda wheels and have fitted the Ultegra 10sp cassette (also new), which seemed to go on OK. However, I notice that both the wheels and the cassette came with spacers to be used when fitting 9/10sp cassettes on to 11sp freewheels.

The question is: do I need both the Campag spacer AND the Shimano spacer, or will just the Campag one do? I have tried with just the Shimano one and it is too thin on it’s own.

For the record, the rear hub is the Shimano compatible version.

The reason I ask is that I am having a little difficulty setting up the gears.

Cheers.

you should fit the thin spacer that came with your cassette, and the thicker one that came with the wheeels.

You should need both of them.

Cheers folks