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BriceJohnson
 Post subject: Re: SCCA introduces Street Tire Stock Classes
PostPosted: Fri Feb 17, 2012 10:16 am 
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Joined: Thu Apr 13, 2006 7:33 am
Posts: 2230
DickRasmussen wrote:
Question:

Do the fastest 140 treadwear tires keep their grip if they are "driven/autocrossed" down to optimum tread depth versus shaved?

That can make a BIG difference on total cost.

Been there done that. Never ever shaved a tire but certainly "wore" a bunch of $600 sets (in 1977 and 1978) michelins to optimum depth for big events such as Nationals.


I never noticed much fall off in my star specs over the life of them, I had 5 sets that were autocross/daily driver double duty.

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