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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > 18x8 ET 20 square setup on 328xi - what tire size?



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      07-22-2012, 06:34 PM   #1
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18x8 ET 20 square setup on 328xi - what tire size?

I'm thinking 225/40/18?
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      07-22-2012, 07:39 PM   #2
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thatll work
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      07-23-2012, 03:00 PM   #3
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Yup, I wouldn't recommend any other size on that wheel. 225/40's will work, both run-flats and non run-flats. But ET20 sounds aggressive depending on what car it's going on - E90, E92, E90-LCI?
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      07-23-2012, 04:43 PM   #4
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pushing the wheel out 14mm from stock shouldnt be too aggressive if stock sports suspension. im on 8.5 et 30 up front and could have gone to et25-28 just fine.
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      07-24-2012, 06:29 PM   #5
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Yup, I wouldn't recommend any other size on that wheel. 225/40's will work, both run-flats and non run-flats. But ET20 sounds aggressive depending on what car it's going on - E90, E92, E90-LCI?
2008 E90 328xi non sport
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      08-01-2012, 06:45 PM   #6
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Guys, about to order 225/40/18 for 18x8 et20 wheels on an e90xi non sport. Am I good?
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      08-01-2012, 08:03 PM   #7
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yup. which tires though. some are more square than others.
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      08-01-2012, 08:19 PM   #8
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yup. which tires though. some are more square than others.
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      08-02-2012, 08:12 AM   #9
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those seem to be a pretty square shoulder. Since you are not dropped it should be fine. Search on here for people with the same offsets to see how it looks
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      08-02-2012, 01:33 PM   #10
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Quote:
Originally Posted by wdeerfield View Post
pushing the wheel out 14mm from stock shouldnt be too aggressive if stock sports suspension. im on 8.5 et 30 up front and could have gone to et25-28 just fine.
You're right. It'll be pretty flush though. Like deerfield said as well, it depends on the tires, different tires have different sidewalls and the difference between rubbing and not rubbing is only 1-2mm.
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