Fulcrum XDR Freehub Body

This freehub is designed specifically for Fulcrum hubs that utilize a 33mm diameter ratchet ring or pawl interface. You should verify that your current hub matches this 33mm specification before purchasing, as Fulcrum produces several different freehub standards.

Generally, replacing a Fulcrum freehub body is a straightforward process that requires basic bike tools, such as a cassette lockring tool and potentially a cone wrench or hex key depending on your specific hub model. If you are unsure about the procedure, consulting your wheelset's technical manual or a local mechanic is recommended to ensure proper preload adjustment.

No, this specific freehub body is machined exclusively for SRAM XDR cassettes. It will not accept standard Shimano HG or Campagnolo cassettes, as the spline patterns and lockring interfaces are completely different.

While steel is slightly heavier than aluminum, it offers superior durability and resistance to cassette 'gouging,' where the cassette cogs dig into the freehub splines over time. This makes it an excellent choice for riders prioritizing long-term reliability and consistent shifting performance.

Yes, you will likely need to perform a minor derailleur adjustment. Because the spacing of the XDR cassette may differ slightly from your previous setup, a quick limit screw and cable tension tune-up is standard practice to ensure smooth shifting across the entire range.