Wahoo KICKR Campagnolo Freehub Body Description: The KICKR Campagnolo Freehub Body converts Wahoo trainers for use with Campagnolo 10, 11, and 12 speed cassettes. The standard freehub body on the KICKR trainers is Shimano compatible, this freehub is needed when using a Campagnolo drive train equipped bike. Note: Campagnolo cassettes with 8 inner arms on the largest cog are NOT compatible with the KICKR MOVE, KICKR '18/KICKR V6 and KICKR CORE version. Features: Install on Wahoo KICKR trainers for Campagnolo cassette compatibility Includes spacers and cassette lockrings for different cassette configurations Includes: Campagnolo Freehub Body Spacer Lockring for 11T Cog Lockring for 12T Cog