Specification
Robert Axle for Trainers replaces your stock 12 mm thru axle so you can use your bike on a trainer.
- This axle is compatible with 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo and many other on-wheel resistance trainers.
- The true length of the axle shaft is 174 mm. Please note: Thru-axle lengths do not equal hub standards. An axle has to be longer than the hub to fit in the frame. A 12×142 hub does not equal a 142 mm long axle.
- This axle has a 1.75 mm thread pitch.
- The axle shaft and axle ends are precision CNC machined from 7075 aluminum, and hard anodized for rugged durability.
- No special tools required. Design allows for installation or wheel removal using your standard 5mm hex wrench.
- Designed, built and quality tested in the USA. Proven around the world
Support
Need more information about how our axles work?
All orders from our website are via US Postal Service, from Oregon, U.S.A. We make every effort to ship your order within one business day.
Shipping rates and average delivery times are:
• United States: $7.50 USD, 3-4 business days
• Canada: $21.50 USD, 10-14 business days
• All other International: $21.50 USD, 12-16 business days
We are unable to offer expedited shipping. If you need expedited shipping of our products, please visit our Dealers & Distributors page for options. We cannot take responsibility for any delays during shipping, including delays in customs or incorrect shipping information.
Jeff (verified owner) –
Excellent fit. Directions for size were spot on.
Paula (verified owner) –
Ever so impressed with your company and this product! The axle was shipped to Canada and installed on the bike within 4 days of making our online order. The axle was easy to install, fit perfectly, and is compatible with our elite trainer. The accompanying instructions were very clear and detailed. You website is very user friendly. The brand-specific dropdown menu is very useful and inspires confidence that your product is well-designed. Thanks for saving the day!!!!
Simon (verified owner) –
Bought a 12X142mm for my indoor training on my Cycleops Jetfluid Pro. The website fitting guide said it fit: it is a very close call…You’ll need to “stretch” the trainer arms by hands while pushing on the saddle.
Once seated, it work fine and is very sturdy.
I won’t put back the formula axle next summer; I’ll simply remove the conic ends of this better axle.
Richard Blankenship (verified owner) –
I needed a trainer axle for my daughter’s bike but couldn’t find one until I found The Robert Axle Project. Their customer service and support was excellent in making sure that I ordered and received the correct axle. The product is excellent, so much so that I ordered another axle for my Domane bike to replace the one that I purchased from a different company earlier. The axles are perfect fits. Great group with whom to do business. I have no reservations recommending the company or product.
David Lowe – UK (verified owner) –
Just the job for my Norco Search. Perfect. Thanks a lot
Steve Foskin (verified owner) –
Well designed and manufactured to perform a basic function which it does impeccably. Not much else to say
Eric (verified owner) –
I have a 2017 Norco Threshold C and a Whaoo Kickr Snap trainer. The 174 x 1.75 axle work perfectly as a replacement for the stock axle. Saved my about $25 over Wahoo’s. Very happy with the axle.
David Seal (verified owner) –
Excellent product. Robert Axle Project helped me figure out which axle I needed to put my cyclecross bike on an indoor trainer. It works perfectly, and the product was shipped in a day or two. Very good product and service!
Matt (verified owner) –
Bought the 12mm Thru Axle for Trainer: 174mm x 1.75mm thread. This fit both my ’17 Niner RLT and my ’14 Trek Stache 7. Awesome that I can use it for both bikes. Makes it so that either can fit in my 12 year old trainer.
Chad T. (verified owner) –
Installed on Santa Cruz Stigmata 2018 without issue. Looks great and works wonderful!
I didn’t need the washer that it came with, but glad to have it just in case.
Kirk –
Well made. Great fit. Works.
Charlie (verified owner) –
Fits my Stigmata and Kinetic trainer perfectly. Highly recommended.
Alexander K (verified owner) –
Exactly what was needed. Originally used a cycleops trainer thru axle, but it didn’t quite fit my Blackburn trainer and wasn’t quite as stable as I’d like.
This axle has the same exact same shape ends as a standard trainer skewer, and doesn’t need any fighting with spacers, or hoping the trainer is wide enough to fit the unnecessarily enormous axle.
Ken Cox (verified owner) –
This axle is perfect in every way for attaching my RLT to my old Trek trainer. I really appreciate that I can use this same axle outdoors (instead of having to swap back and forth like lesser products) because this winter’s fickle weather has me popping the bike on or off the trainer every other day. I asked a question by email about the washer that came with the axle and received a quick answer that it wasn’t needed for my bike. It’s really satisfying to see a company solve a specific need so thoroughly and perfectly.
Cheryl (verified owner) –
Axle Finder database provided me with the correct axle for my bike trainer. The fit is spot on. And it arrived within a few days of placing my order.
Chad (verified owner) –
Works perfectly. Very happy with purchase.
Julio Balaguero (verified owner) –
Bought the 12mm trainer axle 174×1.75mm thread (TRA201) to be able to use my Trek Checkpoint bike with a 12 year old Computrainer. The website fitting guide was great to help me figure out which axle I needed for my bike. The axle was shipped fast and the installation instructions were very clear and easy to follow. The axle fits like a glove with no spacers or adapters needed. Communications with the company was great. The only improvement I would want would be a longer than one year warranty since this is after all just a metal axle! I would definitely do business with The Robert Axle Project Company again and will highly recommend them.
Stephen (verified owner) –
Super easy way to get your TA bike on a “dumb” trainer. Even with the supplied washer, it fit with room to spare on a Cylceops Fluid 2. If you have any weight weenie aspirations, I would use another axle while out on the road/trail.
Sarah (verified owner) –
Currently using it on my trek crockett 5 disc (2018) and it fits perfectly. Was also easy to install!
Craig Trevillyan (verified owner) –
I’m so impressed with 1. how easy it was to find the perfect axle for my bike and 2. how excellent shipping was. I received a recommendation for The Robert Axle Project from a friend over at The Bike Shop @ Woodward Park in Fresno, CA. I needed it shipped all the way to Nanjing, China where I am currently living. A few clicks on their website and just days later, the axle arrived! I rarely get packages successfully shipped from the US. This was the easiest transaction. The axle feels like more of an upgrade to the stock one that came out of my 2018 Niner RLT 9. Now, on “bad air days” I can just toss the bike on a trainer and ride, or enjoy a nice grind outside using the same axle. I would highly recommend The Robert Axle Project for their products and customer service.
Manjacket (verified owner) –
Bought this for my Tacx Bushido. Fits great, works as it should. No complaints here:)
Bob (verified owner) –
Ordering was very efficient, arrived quickly, quality very high, seamless installation in under five minutes. In many ways it’s better than what I had on my Niner RLT 9 Steel. It now works on my trainer. What’s not to like!
Andy (verified owner) –
I purchased this axle to fit my Trek Checkpoint to my Kickr Snap trainer. It is a well-built, quality axle. Glad to add a bike component that’s still made in the USA!
Chase (verified owner) –
Spot on for my 2017 Trek Crockett! Easy to install and works great on my fluid trainer.
Easy to order, fast shipping, and great communication!
Kate (verified owner) –
This was exactly what I needed for my Trek SL 5. Thank you!!
Allen Day (verified owner) –
Listing was accurate for the application. The axle is nice. No one really wants to pay a bunch for an axle just to chase the lack of standards on how to attach a wheel to a bike so they can use a trainer. At least Robert Axle.gets it right and the product is nice.
Steven Kennedy –
Perfect fit. Works great.
LARRY L ROGERS (verified owner) –
My bike shop recommended Roberts Axel Project to me. I ordered the wrong size but Troy in Customer Service was great in getting the correct axel to me. It fit my Trek AL 3 disk bike perfect for those rainy days when I need my bike Sportneer Bike trainer.
David C Canaday (verified owner) –
The axle I bought for my Lauf gravel bike is high quality and fit perfectly without the included spacers. I could never have ordered the correct size without the helpful bike lookup on the website. Thank you!