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      12-03-2018, 07:58 PM   #49
utsteve98
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Drives: 2019 M5 Competition
Join Date: Sep 2014
Location: DC

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So given the current tire sizes, why would someone change the tire sizes from front and rear with a square set on an all-wheel drive car? I can see going slightly larger all around where the integrity of the ratio of diameters is preserved between front and rear tires. Unless you're running in 2WD all the time, this would seem to add unnecessary wear and tear on the differential.

Also, are you all switching tires on same rims or buying a whole new set of rims?
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