Tacx T1711 Trainer Through-Axle Adapter 142mm x 12mm x 1.0 Fine Thread

If you use a wheel-on style trainer, but your bike is equipped with through-axles, you need this through-axle adapter to allow you to use your bike on the trainer. This specific adapter is good for Specialized (brand) bikes with 142mm x 12mm fine thread (1.0) through-axles at the rear wheel. This one is made by Tacx, but it can also work on non-Tacx wheel-on trainers.