DT Swiss XDR Aluminum Freehub Body Ratchet 12x142/148mm with End Cap, Fits 180/240/350/440 Hub

This freehub body allows you to run 11/12 speed Sram XD cassettes on DT Swiss 180/240/350/440 hubs as well as hubs that use DT Swiss internals. Please reference your wheel's manufacturer to ensure that this freehub body will work with your wheels

Ratchet freehub bodies have a gloss finish and don't have a seal, as this is fixed on the hub shell. The Ratchet System was the first of this type for DT Swiss; used in the mid-range products like the 350 hubs.