Tacx SRAM XD-R Body for Type 2 AxlesThe standard body of a Tacx direct drive trainer is not compatible with all cassettes. Use this body to suit your SRAM XD R cassette. It's easy to place, and all you'll need is a 5 mm hex key. The SRAM XD R body is suitable for 11 and 12 speed SRAM XD R cassettes. This version is used for trainers with Type 2 axles Type 1 Axle 6 mm or 9 mm internal diameter axle hole suitable for a quick release skewer. Adapters allow for a thru axle bike to be