How To: Use a Thru-Axle Bike on a Wheel-On Trainer (Videos)

Mountain bikes are all thru-axle these days, and road bikes are moving in that direction quickly as well as the cycling world adopts disc brakes. And while we love the stiffness and reliability of thru-axle, many wheel-on trainers don’t include thru-axle compatibility out of the box.

Never fear, though: our favorite Lama is here, with videos to guide us on getting the job done!

If you have a Tacx wheel-on trainer such as the popular Tacx Flow Smart, you’ll need to know the length, diameter, and thread type your bike’s rear wheel uses. Then just purchase the correct “Tacx E-Thru Axle” on Amazon or elsewhere.

Using the Tacx adapters on other brands’ trainers is going to be a little “hit and miss,” as Shane says. They won’t work with the popular CycleOps Fluid 2, for example. The Wahoo KICKR Snap has its own adapter kit, but only for 12×142 thru axles.

Tacx E-Thru Axle Adapters
KICKR Snap 142×12 Thru-Axle Adapters

Here are Shane’s tutorial videos showing how to set up the Tacx and Wahoo thru-axle adapters.

Setting up Thru-Axle on Tacx Wheel-On Trainers

Tacx Classic Wheel-On Trainer Thru-Axle HOW TO [E-Thru Trainer Axle]

Setting up Thru-Axle on Wahoo KICKR Snap

Wahoo KICKR Snap Thru Axle Kit Installation // Giant TCR 2019 (142x12)
Eric Schlange
Eric Schlangehttps://zwiftinsider.com
Eric runs Zwift Insider in the spare time he finds between riding his bike and managing various business interests. He lives in Northern California with his beautiful wife Monica. Follow on Strava

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Chad Quadhamer
Chad Quadhamer
6 years ago

I use an axle from robert axle project. They have a great website and Awesome products.

SRS
SRS
6 years ago

I also use one from Robert Axle Project. Very easy to find the one that’s compatible with your bike/trainer set up.

wheel magician
5 years ago

This article provides details about wheel on thru axle adapters. This blog happens to be one of the best blog, which give proper details about it. I enjoyed reading this blog and would suggest others too, and you would get to read about it in this link.

Johannes Herdt
Johannes Herdt
5 years ago

Hello, i have a question/problem.
I own a 2020 Cannondaly SystemSix and it says it has a m12x1 axle.
I want to fit it into the Tacx Smart Vortex.
So i bought the Tacx T1711 and T1707 because i wasnt sure about the length. But both do not fit, because the thread seems to be different. I checked now like 100 times but the Thread must be the same. A 1.5 is way to rough.
I cant find a solution..i guess i have to send everything back..

thanks for the help!

Mauricio Sierra
Mauricio Sierra
3 years ago

How do you know what thread is adequate? I own a Pinarello road bike, purchased the 12×1.5 axle but it will not go thru the thread on the other side unless forced upon, and we all know what can happen

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