my 2 cents: i worked several years at a 'real' tire shop and i won't mount those 1 piece split rims. cage will contain them but I had an old pro tell me they had one that sat over a week mounted and waiting for the customer to come and get. He rolled it over a curb to load in back of his pick-up and it blew apart-the ring taking 1/2 of his head with it. I cut all these d4#" things I get a hold of into pieces with the torch.