This adapter is the same shape as the newer style Fanatec QR's as used on the McLarren, Formula V2 and Podium hub.
New design from August 2020 - The 50.8mm holes are inset so bolts can be used either way. this dramatically reduces the part weight compared to the old part.
We have added the following hole patterns...
You can use the adapter to either bolt onto a Fanatec wheel so that you can connect a QR of your choice. Or you can use it to connect a wheel to the Fanatec QR.
There are lots of combinations. We use this on our McLaren, Formula V2 and Podium Emulator products.
Made from Black anodised Aluminium. The threads can easily be drilled out if you need bolts to pass through any of the holes. Just use a 5mm drill bit.