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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 > E90 lci - wheel help!



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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.
    Current Wheel Width  inches             Current Wheel Offset  mm.
         New Wheel Width  inches                  New Wheel Offset  mm.
 
TIRE WIDTH
/
ASPECT RATIO
- WHEEL DIAMETER
ORIGINAL TIRES
/
NEW TIRES
/
Based on your stock wheel setup, your new wheel will have:
Original Tires Diameter (in.)
      New Tires Diameter (in.)
  Difference in diameter (in.)
           Percent Difference %
                     
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      03-15-2013, 11:51 AM   #1
freddym8692
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E90 lci - wheel help!

So I have 2010 e90 328xi in Space Gray. My car currently has those ugly 16 inch rims and this year I'm finally looking into upgrading them. I've been looking into getting TSW Nurburgring in the Matte Gunmetal finish. I've been doing lots of research on the forums and since its my first time buying wheels I want to make sure I'm doing this right. I want to definitely run a staggered setup. For the tires & rims:

Front: 225/40 r18 rim size: 18x8 5x120 et35
Rear: 255/35 r18 rim size: 18x9.5 5x120 et40

My questions regarding this setup is if the offsets are good for the rear? Like will it be flush to the fender, stick out or be a tucked in? Another question is if cosmetically will these rim widths look good on the car? Also just want to make sure that tire sizes are correct and won't cause any problems and that rim widths won't cause any problems.

Please any input that is given would be greatly appreciated!
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      03-15-2013, 03:44 PM   #2
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Bump!!! any input from anyone would truly help me out, trying to order these ASAP!
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      03-16-2013, 04:47 AM   #3
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plug in your 16" rim information into the calculator at teh top of the page and then punch on the new wheel information and see what it says.

then measure on your car
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      03-16-2013, 05:02 PM   #4
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The ET35 and ET40 offsets are good for the LCI E90. Its a conservative fitment, so you don't need to worry about rubbing. You will probably have 10mm clearance between the tires and the fender. You safely choose 235 front and 265 rear tires for those rims if you want to. However 225 and 255 widths may be better in your case because the diameter match is better for your AWD 328xi.
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      03-17-2013, 04:04 AM   #5
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Quote:
Originally Posted by EstrlM3 View Post
plug in your 16" rim information into the calculator at teh top of the page and then punch on the new wheel information and see what it says.

then measure on your car


Use that tool provided, so helpful
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