Before I attempt to bash the rim back into shape, you first need to anneal the aluminium.Annealing involves heating the material up to about 400 degess celcius and then letting it air cool very slowly. Why? Aluminium hardens with age (age hardening) and hardens as it is worked (work hardening). So in order for me to bend it back into shape without breaking it, I will anneal the rim and let it sit till it air cools. I am going to place it in the oven to heat to 250 degrees and then use a propane torch, heat it to 400 degrees.