
I have finally gone full hog on a "Darkside" for my 88 HRD outfit. This story will not suit everyone but it is an option to fit what ever tyre you want that will fit in the swingarm.
I originally fitted a 195/55R16 on the back wheel but the Department of Transport did not approve of fitting a car tyre onto a motorcycle rim as the rim profiles are different and the actual diameter of a car tyre is just a smell smaller than a motorcycle tyre.
So i bought a couple of second hand 16x6" rims out of the local paper to modify to what i wanted and here is my story.
Got a length of 180mm x 6mm Aluminium flat bar and cut out some biscuits to fit between the spokes of my rear wheel.