I am mounting some big 235-75-15 snow tires on Rally II rims for winter. The inner bead part that seats on the rim is squooshed in towards the center from storage and I can't get them out far enough to reach the rim so I can inflate them. I know about the carb cleaner explosion trick but I was hoping to save that as a last resort. Ny Uncle had an inflatable strap that you ran around the outer tire, inflated that, and it squeezed the bead out to the rim. I don't have that so what can I do in a pinch?