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      08-27-2012, 01:35 PM   #3
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Drives: 2011 BMW 335d
Join Date: Sep 2010
Location: Murland

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Originally Posted by Patrick719 View Post
The problem is less about the size of the wheel and more about the strength. An 18" cast rim will bend easier than a 19" forged one.
While I concede my question is rather general, I understand the strength equation, the question is more related to the size and narrower sidewall when running 19"s, which tends to make a wheel more suseptable to being bent.

So I am curious to know if others running 19's (cast or forged) experience vibration problems due to wheel run-out.

PS: a forged wheel is not necessarily stronger than a cast wheel. There are cast wheels that are as strong or stronger than forged. The big benefit to a forged wheel is weight reduction combined with strength.