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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 > Need Help Sizing Tires - Pics Inside



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Wheel offset calculator courtesy of BimmerPost.com. You may use this calculator to calculate what tire sizes you might need if you upgrade your tires, or what wheel sizes/offsets are compatible with your car.
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  Difference in diameter (in.)
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      07-06-2012, 08:02 PM   #1
frontin540i
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Need Help Sizing Tires - Pics Inside

I have a set of breyton visions, 18x8.5, et13 all around.

I am buying tires tomorrow and need to make a final decision on what size to run.

I was planning on some 215/40r18.....after some searching i am wondering if i should run a 215/35r18.............or something different. I am open to suggestions, here are some pics of a test fit on the front. I am not dropped yet but am ordering coilovers also and plan on being as low as i can with it still being drivable.










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      07-07-2012, 03:27 AM   #2
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You should get yourself an open wheeler. These will never fit on this car, except if you mess-up so much with toe that handling will be compromised. Why so large wheels with so slim tires? This all doesn't make sense.

Not to feel rude or anything, if it were just for looks, your call (although most people find protruding wheels to be ridiculous), but this will rub and drive like crap, may even be dangerous and lock the suspension on bumps. You'll regret it. Sell these wheels and get a proper fitment, that will increase look and performance.
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      07-07-2012, 07:03 AM   #3
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Stance? also you mess with camber, not toe.........

If you don't know what you are talking about please don't post.

These can and will fit, it is all about tire selection.
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      07-07-2012, 10:59 AM   #4
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215/35/18 is too short go with 215/40/18.
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      07-07-2012, 11:36 AM   #5
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Well i went with 215/40's, here is the outcome, looks good. ordered coilovers this morning so when i drop it i will roll the fenders a bit.





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      07-07-2012, 11:45 AM   #6
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Should add some 12-15mm spacers in the rear and roll the fenders
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      07-07-2012, 12:17 PM   #7
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yeah i think i'm gonna run a 10 or 12mm, my et will be either 3 or 1 then lol
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      07-07-2012, 12:58 PM   #8
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With a 15mm spacer your offsets would be -2
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      07-07-2012, 02:26 PM   #9
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Hahaha i know.....not sure i want to get that aggressive
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