Thread: Z4M to STR?!
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      12-21-2012, 02:38 PM   #5
AUTOX08MC
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Drives: 16 M4
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After reviewing the tire size rules for STR I have re-submitted my recommendation.....for STU. STR rules are set for a tire width max of 255 which IMHO is not nearly enough tire for the Z4M in autocross trim. STU allows unlimited wheel width and max tire width of 285 which would be more in line with the purpose of the Street Touring classification and the Z4M. STR was faster than STU at the National Championships and an E36M3 won STU.
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