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      02-14-2013, 04:59 AM   #32
No 55mph
1QuikWS6's Avatar

Drives: 09 E92 328iX N51 3-Stage ->M6
Join Date: Jul 2009
Location: Blitzburgh, PA

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Originally Posted by Strictly4Boosting View Post
My stock setup is 225/45/17 front and back.

Im looking at 18' 8.5 all around or I can do staggered with a 18 9.5 in the rear but im not sure if ill have problems . With these tires 225/40/18 front and 255/35/18 rear. Would I have any problems? My car is a 06 330xi 4dr , not sure if its super sensitive like the 335 2dr's .
You'll be fine - that's what I have run on my 328iX E92 for years with no problems. XDrive between E90/E92 is same - one not more sensitive then the other...

Tire sizes = 25.09" Dia Fronts/25.03" Dia Rears

For the longest time those were the reccomended tire sizes for use with 8-8.5 Front wheels/9-9.5 Rear Wheels according to TireRack & many others.

In recent history people have been pushing it and using larger sizes - in the end, it's the OD of the tire/wheel combo between Front/Rear that need to be <1% difference
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