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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 > 20's on E90 - what about offsets and ET?



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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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         New Wheel Width  inches                  New Wheel Offset  mm.
 
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  Difference in diameter (in.)
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      02-06-2011, 11:57 AM   #1
NiKeMaN
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20's on E90 - what about offsets and ET?

Hey!

I'm thinking about getting a sets of 20's for a E90.

But do you think a set of
20x8.5 ET34
20x9.5 ET37
will fit without any rubbing?
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      02-06-2011, 09:11 PM   #2
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Your car is an LCI E91 right? Do you want to put 275 or 285 on the back?
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      02-07-2011, 03:04 AM   #3
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The specs posted above will be fine. A little conservative to some perhaps.

Here's another thread just a few topics down covering it:
http://www.e90post.com/forums/showthread.php?t=483434
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      02-07-2011, 01:03 PM   #4
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Quote:
Originally Posted by NiKeMaN View Post
Hey!

I'm thinking about getting a sets of 20's for a E90.

But do you think a set of
20x8.5 ET34
20x9.5 ET37
will fit without any rubbing?
This fitment is spot on with the proper tire sizes.

245/30/20 and 285/25/20 can work but it may require some fender rolling depending on tire manufacturer.

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      02-07-2011, 01:08 PM   #5
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You're getting an e90?
Is it for an e90 LCI or pre-LCI?

Those offsets are fine, but will most like rub on an e90 LCI. Depends on tire size.
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