• You need a 10speed campag freehub as the campag freehub fittment is the same for 10/11 spd cassettes.
    Or you can get a 11sp cassette that fits on 10spd free hub, they exist but aren't cheap.

    Neither option is cheap.

    I'd just rebuilt wheel with new 11spd hub.

  • If the hub is not the 40t engagement you can't put the 11spd Shimano free hub onto it.

    I have just had to get new wheel built with the new hope hub to run an 11spd group set.

About