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      10-11-2012, 01:52 PM   #1
135iDCT
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Question wheels offset?

I konw what is wheel offset, but i don't know what is better and what's the diff
between them..

what's better 50mm or 58 or 22 i don't know

i just know if it's lower it will be more inner

what's better positive offset or negative , is it related to suspension mods?
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      10-11-2012, 03:07 PM   #2
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Wheel offset determines the wheel's (width remaining the same) location relative to the hub of the car. A higher offset wheel # will bring the wheel in towards suspension components and the inner fender. A lower offset wheel # will bring the wheel away from suspension components and towards the outer fender. The 1 series requires very high offset wheels to fit wide tires for higher grip applications. Our fitments for the 1 series utilize an 18x8.5" ET45 front wheel and 18x9.5" ET58 (EC-7 model) or 18x9.5" ET62 (ARC-8 model) rear wheels. These are spec'd so you have the ability to use a 235/40/18 front tire and a 265/35/18 rear tire without major modifications.

The below graph is a good visual indicator of how the same width wheel with a different offset can have a very different look and fitment.

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      10-11-2012, 04:23 PM   #3
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nice explanation..

now if we compare 18,9.5,ET22 vs 18,9.5,ET58

which one would be better for handling?
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      10-11-2012, 04:29 PM   #4
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Quote:
Originally Posted by 135iDCT View Post
nice explanation..

now if we compare 18,9.5,ET22 vs 18,9.5,ET58

which one would be better for handling?
If we were comparing these wheels on a car that could fit either set up without problems and the same size tire than the 18x9.5" ET22 should provide better handling. This is due to a wider track width from the lower offset wheel. The 18x9.5" ET22 will not fit a 1 series without serious widebody fender modifications. The best size and offset wheel for handling on any car is one with the width and offset spec'd to provide the widest tire set up.

We always recommend either the 18x9.5" ET58 EC-7 or 18x9.5" ET62 ARC-8 for maximum width rear tire fitment on the 1 series.
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