FWIW another trick to make mounting MUCH easier (including getting the stem through the hole in the rim) is to use zip ties....the tube is inflated just enough to round it out and placed in the tire before the zip ties are installed and then both beads are mounted at the same time...no need to cut the zip ties once the tire is on the bike, the locking tab can be released w/ a small screwdriver. Am mounting a DR650SM tire in the pictures but have done Commando tires this way too...