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      09-09-2012, 12:25 AM   #1
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Drives: 2011 E92 335is
Join Date: Dec 2011
Location: Alabama

Posts: 455
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Explain how going from a 35 to a 30 height doesn't change your speedo

I see a lot of owners going from a 265/35/19 to, say, a 285/30/19 in the rear and nobody is mentioning a speedo difference. Isn't the wheel turning faster if the tire is shorter?
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