TACX Freehub Campagnolo N3W

The standard freehub body supplied with a Tacx direct drive trainer is not compatible with all cassettes. Use this freehub body to mount your Campagnolo 12s -13s N3W type cassette. It’s easy to install, and all you’ll need is a 5mm hex key. 
CHECK carefully to ensure this item is correct for your TACX trainer.

The body is compatible with 12-13-speed N3W Campagnolo cassettes only. This version is used for TACX trainers with Type 2 axles  For full compatibility information go to this link.

GARMIN/TACX PART NUMBER: 010-13121-00