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I doubt it. I think when going with any 15" wheel up front, you will have to grind a little. I had Bogart's that were supposed to fit, and I still had to grind a bit.
Are you sure that they are 1" back spacing and not 1 3/4"? I never saw a Pro star with a 1"BS. If it's 1 3/4 all you need is the 5/16" spacer and no grinding.