the oven method works really well. I have done it a couple times and each time the tire just popped off the rim like it wasnt even glued. You have to set the oven to 450 and let it heat up. Once its heated up, turn the oven off and stick the tires you want unglued in the oven for 45 minutes. Then let them cool for 10 minutes and the tires will just fall off the rim. But REMEMBER TO TURN THE OVEN OFF AND ONLY HAVE IT SET TO 450 MAX.