This trainer adaptor is required to use your bike with thru axle with a Tacx indoor trainer. For bikes with thru axle Suitable for Tacx indoor trainers Model T1706: 135 x 10 mm (suitable for hubs with 10 mm thru axle mount such as DT Swiss Thru Bold systems, some Shimano or similar) Model T1707: 142/135 x 12 mm (suitable for hubs with 12 mm thru axle mount and frames according to Shimano E-Thru standard mit fine thread - not suitable for ROSE frames or models with SRAM Rear Maxle axle/standard (coarse thread) Available in size 135 x 10 or 142/135 x 12 mm End Caps only
