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      01-08-2015, 08:17 PM   #11
BeEmVe
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Drives: '14 X1 x28i M-Sport
Join Date: Sep 2013
Location: on the road to perdition

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Quote:
Originally Posted by Twix View Post
The factory wheel is 8" wide for the 18" wheels. They have an et34. If you were to change that et to say et20, you'd push the wheel outward towards the fender by 14mm. So adding to the et34, to say et40 would bring the wheel in by 6mm.

FWIW: The factory 18/19x8 are ET30. The factory 18/19x9 are ET41. The factory 17x7.5 are ET34
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