I have a tire machine that does the job, but is very hard to use. To brake the bead the tire has to be placed under the machine. The an air cylinder arm comes down to push the bead down, then flip the tire over and do the same. Next place it on the top of the machine, using a bar to pry the tire off. Usually done in 90 degree heat. I saw a listing for a Coats 10 10 tire machine for 125.00. It is now at my shop. Just place the tire on top of the machine, using the foot pedal it brakes the bead on both sides. Then it bars the tire off. The same bar rolls the bead back on. So much easier for this old guy. Wish I had this 40 years ago. Stan