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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 > Anyone running this setup?



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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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      09-09-2012, 11:07 AM   #1
robc1976
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Anyone running this setup?

I am getting new concept one CS-5 rims and was told to run a 245/30/20 in front and a 285/25/20 in the rear and there would be no rubbing issues on non-rolled fenders. Anyone have pics of this set-up?

Offsets:

Front (35) 20 X 9
Rear (42) 20 X 10.5
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      09-09-2012, 08:41 PM   #2
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I'm not sure of my offsets but my sizes are exactly the same - no rubbing in the front but some rubbing in the rear when going over "dips" at moderate to high speeds. Fortunately, i believe the rubbing is to the insulation padding on the inside of the fender and not the actual fender.
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      09-09-2012, 09:36 PM   #3
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Quote:
Originally Posted by Red Rocket View Post
I'm not sure of my offsets but my sizes are exactly the same - no rubbing in the front but some rubbing in the rear when going over "dips" at moderate to high speeds. Fortunately, i believe the rubbing is to the insulation padding on the inside of the fender and not the actual fender.
I am coming from 19's so I am new to the 20" ball game and could you answer some questions for me?

1. Are you lowered, I have been told that 20's without a drop looks bad?
2. How bad does hurt performance acceleration?
3. Handling, how bad is it?
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      09-26-2012, 04:38 PM   #4
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1) I have since lowered on H&R sport springs (stock shocks) and rubbing is a little worse, although it still seems like its only on the inside fender padding.
2) I do not notice any negative performance issues
3) Not much difference handling - still feels very stock.
I'm thinking of changing shocks to Koni Yellow's in the hope that the stiffer shock may alleviate some rubbing, although i've been told that it won't help much in that area (but will perform better).
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      09-26-2012, 05:18 PM   #5
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Quote:
Originally Posted by Red Rocket View Post
1) I have since lowered on H&R sport springs (stock shocks) and rubbing is a little worse, although it still seems like its only on the inside fender padding.
2) I do not notice any negative performance issues
3) Not much difference handling - still feels very stock.
I'm thinking of changing shocks to Koni Yellow's in the hope that the stiffer shock may alleviate some rubbing, although i've been told that it won't help much in that area (but will perform better).
Awesome, I just got lowered on the H&R sports as well (fenders rolled) and awaiting the rims. I may also change to koni yellow's.
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      09-26-2012, 05:27 PM   #6
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Let me know what size rims / tires you end up with and how they ride after the you put the rims on.
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