Shimano/SRAM Freehub.

This freehub makes your Wahoo KICKR indoor trainer compatible with Shimano or SRAM 9, 10, and 11 speed cassettes. It will work only with the 2018 edition of the KICKR.

Note: Installation is required! Please visit our support site for Shimano Adapter instructions. Shimano Cassette and Lock Ring are not included. Please ensure you have all of the proper tools before purchasing. If you do not want to perform the installation yourself, your local bike shop will have the tools and the know-how to get you up and running!