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      08-14-2014, 12:07 PM   #42
zipstic
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Drives: 2008 e92 335xi
Join Date: Sep 2011
Location: Minneapolis

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2008 335xi Coupe  [10.00]
Quote:
Originally Posted by Priority 1 View Post
So my last thoughts are that the construction of the PSS with its twaron fibers makes the tires act differently than normal, and that the measured rim width could cause a difference.

With the 225/35R19 and 265/30R19 they have measured rim widths of 8" and 9.5" respectively. I mounted them on style 313 wheels which are 8" and 9" respectively. So maybe since the stretch was different from front to rear it changed the rolling diameters disproportionately. Does anyone have any experience or thoughts on measured rim width differences with the wheel causing diameter changes?
Quote:
Originally Posted by mike5809 View Post
*Bump*

For the same reasons as the OP I purchased a set of 225/35/19 and 265/30/19 tires as it was supposed to be one of the closest setups within the 1% diameter spec. TireRack also said this was the recommended setup and size over others.

I wanted to see what the outcome was - were you able to use this setup when you put it on the Hunter machine with "transaver" or did you get a new setup?

The vehicle also at times feels like it is slightly slipping during slow shifts or a slight jerk and I am concerned it is the tire size. It is not very noticeable but does give me a slight concern.
Quote:
Originally Posted by mike5809 View Post
Well 225/35/19 and 265/30/19 is well within the 1% threshold... yet it gave the OP problems and appears to be giving me problems as well. Its hard to believe that everyone says that if you are less than 1% there is no issue but yet there is. I don't think I will deviate from stock sizes again.
I am running 225/35/19 and 265/30/19 on 313's (19x8 and 19x9) with Hankook Ventus V12 evo K110's. I've been running this setup for 3 summers, which probably equates to 7K total miles. I have not had any issues.
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