DT Swiss Steel 11-Speed Road Freehub Body, Standard Bearing Freehub bodies put up with a tremendous amount of abuse. After all, they're the interface between your pedaling motion, and the force applied to your rear wheel. Just think of those grinding uphills. When your cassette is starting to feel a little bit loose, or you find during maintenance tasks that it's difficult to get that cassette off or back on there, it might be time to replace your freehub. The DT Swiss Steel 11-Speed Road Freehub Body, Standard Bearing might be the part you need. DT Swiss Steel 11-Speed Road Freehub Body, Standard Bearing Specifications: Fits current 180, 240 and 350 hubs Compatible with DT star ratchet rear hubs Material: Steel | Dt Swiss | 11-Speed Road Freehub Body Steel, Fit Current 180, 240 & 350 Hubs