Thread: Spec Twin?
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Old 09-07-2017, 10:28 AM   #136
14stu
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Quote:
Originally Posted by ApexEight View Post
So to compete in the class do you have to run the spec tire? What constitutes being on an underprepared tire?

Edit: and can I run a 17x7.5 +40 but still use a 225/45 tire whether it be the Spec tire or something objectively less capable like a 300 TW tire?
I can't imagine you'd get any complaints, since you'd end up in last place. The spec tire will be under $600 a set, you aren't going to save much/any money on worse tires.

Get 2 sets of wheels, one with the spec tire and one with daily driving tires. Swap them at or before events and you'll save money. Autox will ruin a daily tire, even a higher tread wear one, pretty quickly (mostly through camber wear, which often causes the tire to become very loud on the highway).
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