Quote:
Originally Posted by danallxt
This has been bandied about, but does anyone have this in writing anywhere from BMW, is there a valid written source somewhere? Not saying it's not a fact, but can someone provide a valid source? Until then i treat it much like i treat a lot of what i read on the interweb.
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I believe Subaru states there should not be more than 1/4" difference in circumference, which is basically a same size tire that's just worn down a little more than the others.
BMW giving a 0.8" difference in circumference with the ZTK package seems pretty liberal. However, with a RWD bias, and rears wearing down faster than fronts, this 0.8" difference should gradually decrease.
