When mounting a Fanatec Rim to a direct-drive wheel this adapter is needed to attach the Fanatec 52mm bolt circle to the 70mm standard diameter found on most direct-drive motors. This adapter will also let you fit our NRG quick release or any other 70mm quick release. The Fanatec hub adapter includes screws to mount the adapter to the direct-drive Mini-Mite, SimSteering or OSW motors or the NRG quick release. Some screws from the Fanatec rim must be re-used. This adapter will not fit the McLaren rim.