The wheels are custom built due to the scarcity of the Triumph America and the wheels' offset. They are not 'off the shelf' items. South Bay Triumph takes your wheel and transfers the existing hub assembly to a new chrome wheel and then laces up the new spokes to the hub. It fits perfect, uses your existing spacers and allows a tire of up to 190cm(190 is the widest that will fit on a lowered America without rubbing).You could probably put a wider tire if you didn't have a rear fender. If I had thought of it I would have had the hub assembly chromed when it was off the bike. That will come later when the swing arm gets chromed. FYI..South Bay Triumph will powder coat the same wheel the color of your choice. I have seen them do the wheels in red, black, yellow, and a creme color that looks awsome. With the lowering shocks, Corbin seat, and the 180 low profile tire my ride height(my arse) dropped 2-1/2 inches. The bike handles way better now that there isn't that big pillow back there. cheers..