Isn't it just a QR skewer with some adapters? Tacx sent me a heap of extra adapters when I had a warranty claim on my Neo, but I use a 135mm QR on it so I've got all the parts somewhere.
Neo 2 came with thru axle skewer as well. Currently having the Talbot on it. Liking the thru axle for that actually, a more solid connection to the trainer.
anyone put a thru axle bike on a tacx neo? That skewer is £50 and I refuse to pay that!