E-Thru Trainer axle Classic trainers
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.
T1709 E-Thru adapter X-12 (>142 mm).
Suitable for hubs with axle skewer 142×12 mm.