With the Tacx T1709 E-Thru Axle Adapter you can mount an X-12 mm rear wheel axle with cylindrical mount on a Tacx Classic indoor trainer.

Details:
• For bikes with thru axle
• Suitable for hubs with axle clamping 142 × 12 mm as well as BOOST 148 x 12 mm
• Designed for Tacx Classic Trainer with rear wheel drive
• High-quality stainless steel

Compatible Tacx trainers:
• Genius
• Ironman
• Bushido
• Vortex
• Flow
• Satori
• Booster
• Blue Motion
• Blue Matic
• Blue Twist

In the box:
• 1 Tacx T1709 E-Thru adapter X-12