I am sorry I know you didn't ask this but what you want to do doesn't make sense to me. You are buying a set of wheels a size smaller than what would be normal just so you can use up your stock tires. So when you need new tires you're forced to buy a smaller size again or new wheels and tires? Why not leave the wheels you have on there now for the winter and put new larger wheels and tires on for the summer? You'll end up spending only a tiny bit more over the long run. If you're going to sell your stock wheels leave the tires on them and sell as a package, it protects the wheels in shipping and is as easy if not easier to sell that way.