Product details:

Application Bike trainers Installed or removed using a 5mm Allen wrench Designed, built and tested in the USA The Robert Axle ends will extend 15mm past the frame on each side For use with bike trainers such as 1up, Blackburn, Cyclops, Kinetic, Tacx and more Robert Axle Project thru axles allow modern frames to be used with axle mount trainers. Installed or removed using a 5mm Allen wrench. Designed, built and tested in the USA. The Robert Axle ends will extend 15mm past the frame on each side. For use with bike trainers such as 1up, Blackburn, Cyclops, Kinetic, Tacx and more. Materials 7075 Aluminum. Axle shaft and axle ends are machined from 7075 aluminum and hard anodized. Measure trainer at the widest setting and measure the bike frame width at the rear hub.