1 Mounting a tire on this run-flat wheel may seem as complicated as the wheel itself, but in reality it's very simple and fast. It's actually harder to get the tire back off. And as you'll see, the wheel itself is also quite straightforward to assemble. Begin with lubing the inner tire bead and placing the centersection in the tire. Try not to use soap as suggested in the instructions, but real tire lube. Next, make sure the O-ring is in its groove and lay the tire over the inner section, seen in the background.