Quote:
Originally Posted by mikeukrainetz
yes. dont know if you recall me asking about optimum tire size - the tires that came in the set were originally 40 series but I upgraded to the 35s. good thing I listened cause that extra 5mils would have torn all the screws from the inner fender.
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the 40 series isn't signify the height of the sidewall in mm, it signifys the percentage of the width which is the height of the sidewall.
meaning the sidewall height on a 225/40 20 is 40% of 225 and the sidewall height on a 225/35 is 35% of 225.
the difference between the 40 series and 35 series is 11.25mm instead of 5mm