p>This hub is available in two variants: one supports the 2014 and 2016 edition with Campagnolo 9, 10, and 11 speed cassettes, while the other supports KICKR and KICKR CORE 2018 edition with more * Campagnolo 10, 11 cassettes, and 12 speeds.br>br>Note: installation is required! For installation instructions, choose your KICKR version below:br>br>a href=”/hc/en-us/articles/360009287520″>KICKR or KICKR CORE 2018/2020 edition/a>br>br>a href=”/hc/en-us/articles/204280084″>KICKR 2014 or 2016 edition/a>br>br>* Campagnolo cassettes with 8 internal arms on the largest gear are NOT compatible with version 18 of KICKR and KICKR CORE./p>