If I put my traditional Yorkshire surname on the final result or go with calling it an Intrepid Motorwheel', well the design committee is still mulling that one over.
The basic design is going to be based around the rear frame triangle from a kid's BMX with the bottom bracket converted into a pivot attachment for fastening the whole device onto a bicycle. The engine and petrol tank will be mounted above the wheel and the wheel will be fitted with a mudguard (fender). All very traditional in basic form and layout.
The BMX wheel is ideal for the job with its large heavy duty spindle and wheel bearings as well as being a 40 spoke wheel. It's a front wheel, but that doesn't matter in the slightest as I'm not wanting to attach either a freewheel or a sprocket to it.