01-30-2017, 06:08 PM
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#3
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Drives: G05 45e, 997.1 & 991.1 GT3s
Join Date: Jul 2014
Location: SF, CA
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you need to keep the overall diameter. So I think OEM 18s in OEM tire sizes should work with OEM 20s that has OEM tire sizes. It's the same concept with a compact spare. The BMW spare and spec tire is the same diameter as all OEM 18-20 inch wheel/tires
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