With the E-Thru axle skewer you use an axle skewer to put your mountain bike in the Tacx trainer. These axles are only suitable for the Tacx classic trainers. Separate axles are available for direct drive trainers and replace the standard axle skewer.

T1708 E-Thru trainer axle M12x1.75, with standard threaded cartridge.
Suitable for hubs with a Maxle axle skewer attachment 135×12, 142×12, 150×12 mm and Trek ABP 142×12.