To the collective knowledge base.
I've just bought some fulcrum racing3 2 way fit wheels. It has an 11 spd freehub and I have an 10spd 11-28 ultegra cassette going in to it. There was a spacer provided with the wheels and I also have a (much thinner) spacer which came with cassette. Should I use both of these or just the one that came with the wheels?
Any input would be greatly appreciated.