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      06-13-2017, 08:44 AM   #6
upstate650
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Drives: 2014 650xi Gran Coupe Msport
Join Date: May 2013
Location: The Hinterlands of Upstate NY

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2020 BMW M340xi  [0.00]
Quote:
Originally Posted by siliconvalleyf06 View Post
Good point Upstate650. Mine is rwd.

I'm hoping someone may know what the offsets should be to make the tires fit.
offset is how far the wheel extends from the hub, not a width issue. A 265 tire will fit on a 9" wheel. 275 is a lot of width, would be better with a 9.5". 315 would definitely require 10.5" wheel, and 305 would be better served there as well unless you like the bulged look. 295 fits perfect on a 10" wheel. The issue you will have with wider wheels is you won't be able to utilize a concave wheel that looks so amazing. There aren't a lot of people running odd sizes on these cars, so it may be hit and miss to find what works and doesn't rub. Based on my personal experience, the offsets of the M5 343 wheel are the absolute maximum in the rear. You could probably run 5 more mm of poke in the front than the M5 343, but that is with my tire sizes. If you run a wider tire the bulge will extend a touch further.

When looking up the 343 offsets, make sure you use M5, not M6 numbers, as the M6 wont fit on regular 6 series. Use an offset calculator to compare what you want to do to a known quantity like the M5 343 wheels.
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2014 BMW 650xi Gran Coupe Msport Black Sapphire Metallic on full black merino leather. 20" M5 343M wheels for summer, 20" 373 wheels for winter with Nokian Hakkapeliitta 8 studded snow tires. M6 CP exhaust with M6 Diffuser and ///M Performance carbon fiber finisher. Mission Performance stage 1.5 and transmission tune.
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