Wahoo KICKR Core Freehub Body for XD and XDRKick It! The Wahoo KICKR Core Freehub Body allows you to use your KICKR with the new SRAM AXS drivetrain system. This kit includes a 1. 8mm spacer for XD compatibility, the original locknut, and the updated tapered locknut. It is compatible with the KICKR MOVE, KICKR '18, V5, V6, and KICKR CORE. Features Allows you to use your KICKR with the new SRAM AXS drivetrain system Includes a 1. 8mm spacer for XD compatibility, the original locknut, and the updated tapered locknut Compatible with KICKR MOVE, KICKR '18, V5, V6, and KICKR CORE | Wahoo Fitness | Wahoo Kick Core Freehub Body For Xd And Xdr Xd