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Old 06-10-2019, 05:11 PM
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andrewwynn andrewwynn is offline
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Join Date: Jun 2015
Location: Racine, WI
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So i found this:

Quote:
According to the experts at TireRack, the tires on xdrive cars can be different sizes from original equipment (but must be within 3% of original tire diameter), and they need to be within 1% (not to exceed) diameter size of each other to not cause problems.
That works out to just about 4/32" difference in tread depth allowed front to back. I don't believe the 3% of OE for overall size as long as they fit and are all the SAME size or within 1% rolling circumference.

That is for x-drive. i think the pre LCI can have up to 3% difference front to back axle.
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2011 E70 • N55 (me)
2012 E70 • N63 (wife)
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