I dunno about the 150 wear #.. I mean factory equipped 4th gen cars came with goodyear F1 tires, they are a 91 or 97, something like that. I think a wear # would be a good way to dictata a legal tire.. but look at what the factory equipped tires of teh cars are and go off something like that... it's kind of hard to expect people to replace tires with stuff that's even harder then the factory put on.
Another thing to think about for this class... is no "treated tires".... the guys running fast series racing are chemicially treating tires and getting them to hook like a slick... not sure how that can be checked, btu there's got to be a way.
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