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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 > new to wheels, few questions



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      05-08-2012, 07:45 PM   #1
lesha
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new to wheels, few questions

1) so when buying wheels, do you trust the seller to suggest a proper offset?
2) do you trust the seller to suggest proper tire size for the wheel as well?

for example, I have 09 335 xi coupe and I'm interested in 18x8.5/18x9.5 VMR vb3 wheels
EAS suggests +40 (front) / +33 (rear) and for tires 235 and 265 respectively

3) so can I safely conclude that this is the optimum set up for me?

4) how does changing the offset translate to how the wheel looks on the car?
5) can you even pick a different offset or do you go by what is appropriate for the car make/model/particular wheel combo?
6) why do I notice that people go with wider than 235 tires for 8.5 width wheels for example?
7) will having a wider tire make the tire stick out past the wheel and give it a better look?
8) how do I ensure the combo of no rubbing, proper handling and best possible look?

sorry for all the questions,, total wheel size noob here, trying to learn all that I can

Last edited by lesha; 05-08-2012 at 08:36 PM.
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      05-09-2012, 01:23 AM   #2
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In short, the VMR VB3 setup that is going to work best with your 09 BMW 335xi is the 18x8.5 ET40 with a 235/40/18 up front and the 18x9.5 ET33 with a 265/35/18 in the rear. This will be perfectly fine on your XI (AWD) and does meet the requirement as the rolling diameter is within the 1% difference. You will not have any rubbing issues and will not need to roll your fenders in anyway.
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      05-09-2012, 10:57 AM   #3
remmib
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Quote:
Originally Posted by lesha View Post
4) how does changing the offset translate to how the wheel looks on the car?
The offset is the distance from where the wheel is in contact with the car (the hub) in to the middle of the wheel.
So on an ET40 wheel it's 40mm.
If you instead gets a wheel (same width), but with ET35, the distance is 5mm less, meaning the wheels will sit 5mm more out/more aggressive.
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      05-09-2012, 11:26 AM   #4
kevin @ eas
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Quote:
Originally Posted by lesha View Post
1) so when buying wheels, do you trust the seller to suggest a proper offset?
2) do you trust the seller to suggest proper tire size for the wheel as well?

for example, I have 09 335 xi coupe and I'm interested in 18x8.5/18x9.5 VMR vb3 wheels
EAS suggests +40 (front) / +33 (rear) and for tires 235 and 265 respectively

3) so can I safely conclude that this is the optimum set up for me?

4) how does changing the offset translate to how the wheel looks on the car?
5) can you even pick a different offset or do you go by what is appropriate for the car make/model/particular wheel combo?
6) why do I notice that people go with wider than 235 tires for 8.5 width wheels for example?
7) will having a wider tire make the tire stick out past the wheel and give it a better look?
8) how do I ensure the combo of no rubbing, proper handling and best possible look?

sorry for all the questions,, total wheel size noob here, trying to learn all that I can
PM coming your way!!
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      05-09-2012, 01:46 PM   #5
Pcemkr
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The buyer is responsible for determining whether the wheel specs are appropriate.
I think it's retarded to buy wheels without know the offsets and how they will fit.
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