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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 > 2005 E90 320i wheel offset query



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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.
 
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  Difference in diameter (in.)
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      07-24-2010, 06:27 AM   #1
jjay009
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2005 E90 320i wheel offset query

Hi, I am planning to buy a set wheel that has following specs? Will these wheels fit on to a 2005 E90 320i?

2 X 18X8.5, 42ET, 5X120

2 X 18X9.5, 45ET, 5X120
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      07-26-2010, 07:58 AM   #2
remmib
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Those offset are very high, should be 30-35, but you can put on 10mm spacers for a better fitment.
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      07-26-2010, 08:17 AM   #3
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Those wheels look like E46 fitment. I think it would be much nicer to get the right offsets, otherwise it won't look quite as good as it should.

I'm not sure about Vic, but in NSW wheel spacers are illegal. It could be a problem if you need to make insurance claim.
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      07-26-2010, 12:13 PM   #4
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You'll most likely want to throw on at least a 5-10mm spacer front and rear for a more flush fitment. With these sizes, you can run a 235 front and a 265 rear.

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      07-26-2010, 01:43 PM   #5
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Those offsets are a bit on the high side for your car. You want to aim for a 18x8.5 ET35-40 in the front and 18x9.5 ET33-35 in the rear. You can achieve this by putting a 5mm spacer in the front and 10mm spacer in the rear with the offsets you provided above. Feel free to shoot me over a PM if you have any questions at all.

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