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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 > Offset for 2010 pre-LCI E92



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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 %
                     
Speedo @60mph will read: mph
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      03-20-2013, 05:42 PM   #1
E92mech
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Drives: 2010 E92 Le Mans M-Sport
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Offset for 2010 pre-LCI E92

Hi all,

I'm about to order custom wheels for my 2010 pre-LCI E92 M-sport (sport suspension). Looking to run 18" staggered PSS, F: 8.5x18 235/40/18 and R: 10x18 265/35/18.

After lots of searching I can't figure out what the minimum offsets I can run are. My original wheels are OEM type 225 F: 8x19 ET 37 and R: 9x19 ET 39.

What is the most aggressive offset I can run on the new 18s without rolling, cutting, etc... I found someone with same setup F:8.5x18 and R:10x18 running F: ET 30 and R: ET 33 but that was on an E90, not E92.

Thanks-
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      03-21-2013, 08:13 AM   #2
E92mech
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Anyone?
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      03-21-2013, 12:36 PM   #3
VMRWheels
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2008 5 Series  [3.30]
We recommend ET35 front and ET38 rear generally. You might be able to go with lower offsets than that if you're on stock suspension, but the Michelins run a bit wide compared to say, Hankooks.

With the ET35 fronts you're looking at 8mm further out than what you have now, and with ET38 rear you're looking at 14mm further out than what you have now.
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