Robert Axle Project 170mm M12 x 1.75 Trainer Axle

The Trainer Axle by Robert Axle Project is engineered to seamlessly connect your bike’s thru axle with a wide range of wheel-on trainers, including models from 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo, and more. Crafted to precisely match your bike’s specifications, it reduces the need for additional spacers and components, delivering a streamlined, reliable axle. This ensures efficient training sessions, effective warm-ups, and keeps you race-ready throughout the season.

This Trainer Axle is engineered to connect your premium bike to a wide range of wheel-on trainers, compatible with leading brands such as 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo, and more. Precision-crafted to match or exceed your original thru-axle fit, it installs easily with a standard 5 mm hex/allen key—the same tool you carry on every ride. When you’re ready to race or ride outside, simply detach the drive side axle end and go. Designed for seamless use both on and off the trainer, indoors or outdoors.

Important:Prior to purchasing, verify that your trainer can accommodate the width of your bike equipped with a modern thru-axle. Measure the widest adjustment of your trainer and compare it to the outside width of your bike frame. Keep in mind the trainer axle ends will protrude 15 mm beyond your frame on each side.

KEY FEATURES

• 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 wheel-on resistance trainers.
• The true length of the axle shaft is 170 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 5 mm hex wrench.
• Designed, built and quality tested in the USA. Proven around the world.