DT Swiss SRAM XDR EXP Ratchet Freehub Kit.
Features
Genuine DT Swiss Freehub body conversion kit, includes freehub body and drive side end cap
Ratchet EXP freehub, fits only DT aftermarket hubs and higher end wheels using the Ratchet EXP system
Freehub features premium custom made DT Swiss steel bearings
Requires no specialist tools to install, although you may need a vice and soft jaws to remove the current end cap if it's too tight to remove by hand
If servicing the ratchets when installing the new freehub, we strongly recommend using DT's specialist molycote grease, only a very small amount is required