Tacx E-Thru trainer axles for Classic trainers, 12 x 1 mm,

The axles are only compatible with Tacx Classic trainers. For direct drive trainers other axles are available and they replace the standard axle clamping.

• E-Thru--Trainer axle M12 x 1 with metric fine thread - Suitable for hubs with axle clamping 142 × 12 mm: DT Swiss-RWS axle clamping (conical and flat), Syntace X-12 system (specialized) and various Shimano types.