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					Originally Posted by A1337STI
					
				 
				How much tread should my tires have left before attending this event ?    And how much  tread loss will occur ?  (any reasonable guess is fine)  i'm on RE070s .   
    I'm guessing after 2 more autocrosses , they won't be suitable to attend a driving school on. 
			
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 Well if roll your diff to the rear you will only use two tires