[CarlG]

For dismounting tires, I have a bead breaker (made for motorcycle tires) that helps in getting things started. I work them off the wheel with a couple of tire irons I bought from Snyder's.

For mounting, I built one of the little platforms such as pictured in post #8 and also in Tom Endy's article mentioned in post #11. I've used various methods of getting it back on including walking it on, plastic bag, and using tire irons. I've done both Radials and bias ply (all 19") and don't think either one is more difficult than the other. It really depends on the age of the tire, the newer, the easier. The last really old one I took off, I had to cut it off.