If you need to change to, or replace the XDR freehub body on your Specialized/Roval Rapide CLX wheelset, this is the part you require. Packaged as an XDR freehub body, with a 12/142mm compatible driveside endcap, this body is equipped for the DT Swiss 240 hub internals the Roval AeroFlange Disc Center Lock rear hub employs.

This design uses the EXP Ratchet system, and the bearings are standard steel sealed cartridge models. The DT ratchet, bearing and seal systems are simple to service and incredibly durable over long hard miles and severe all-weather conditions, which besides the outstanding drive system, is why Roval chose these internals for their amazing hubset.