Baking off tires works great. I have been doing it for years. I bake them off in a regular oven. I put foil on the middle rack, preheat oven to 325. I put the tires on the foil and bake them for about 15 minutes, I then turn the tires over and turn off the oven. I let them sit in the oven for another 10 minutes. Take them out (use an oven mit as they might be slightly hot). Let them cool for a few minutes. I then put them on the table and with a rag I push on the bead and it pops right off the rim, turn over and do the other side. The rims, and tires will be fine. I have baked off tires to replace bad foam, reuse rims, etc. I have even reused foam that was still in good shape. You will have to clean up the rims a little. The glue will be brittle on the rims and comes right off with a knife or blade after the rims cool.