p>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./p>\np>strong>T1708 E-Thru trainer axle M12x1.75,/strong>strong>with standard threaded cartridge./strong>br>Suitable for hubs with a Maxle axle skewer attachment 13512, 14212, 15012 mm and Trek ABP 14212./p>\np>strong>T1709 E-Thru adapter X-12 (>142 mm)/strong>.br>Suitable for hubs with axle skewer 14212 mm./p>\np>strong>T1710 E-Thru trainer axle M12x1.5, with medium thread./strong>br>Suitable for hubs with axle skewer attachment 14212 including Shimano SM-AX65, SM-AX75, SM-AX76 and SM-AX78./p>