How do I adapt a car rim to fit on a Harley front forks and axle
You could check with Buchanan wheel and spoke. They used to have a 15" rim and spokes you could lace to a Harley hub. I had a 15" wheel on the front of my trike for a while. i didn't like it because the tread was flat, and when you turned it would get up on the shoulder of the tire.