440i GC xdrive tire help

jjjkid13 · 11-22-2021, 09:05 PM

So 3 months ago I got some pilot sport 4s' at belle tire. They ordered the wrong tires. They ordered me 225/45/19 for the front and 255/40/19 on the rear. They said it would still fit so I went with it because I didn't want to wait any longer for new tires. A week later I noticed the fronts were rubbing so they re ordered me the front to the OEM size 225/40/19. Ive been reading on the forums that xdrive vehicles running a staggered setup have to have a .1% difference. Would it be ok to keep the 225/40/19 in the front and 255/40/19 in the rear?

b-drizzle · 11-23-2021, 09:31 AM

in my opinion if it comes from the factory with xDrive and staggered wheel/tire, it is good. The manufacturer does a bunch of testing before the product goes to consumer. So go with the stock tire sizes and stick with that.

alohasurftoad · 11-23-2021, 04:31 PM

225/40/19 = 26.1" diameter
255/40/19 = 27.0" diameter

diameter difference = 3.4%

you may have transfer case issues. let us know how it holds up...
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11-22-2021, 09:05 PM	#1
jjjkid13 New Member 1 Rep 17 Posts Drives: F36 440i Join Date: Aug 2021 Location: Michigan iTrader: (0)	440i GC xdrive tire help So 3 months ago I got some pilot sport 4s' at belle tire. They ordered the wrong tires. They ordered me 225/45/19 for the front and 255/40/19 on the rear. They said it would still fit so I went with it because I didn't want to wait any longer for new tires. A week later I noticed the fronts were rubbing so they re ordered me the front to the OEM size 225/40/19. Ive been reading on the forums that xdrive vehicles running a staggered setup have to have a .1% difference. Would it be ok to keep the 225/40/19 in the front and 255/40/19 in the rear?
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11-23-2021, 09:31 AM	#2
b-drizzle Private First Class 21 Rep 129 Posts Drives: 435i Gran Coupe xDrive Join Date: Jun 2014 Location: United States iTrader: (3)	in my opinion if it comes from the factory with xDrive and staggered wheel/tire, it is good. The manufacturer does a bunch of testing before the product goes to consumer. So go with the stock tire sizes and stick with that.
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11-23-2021, 04:31 PM	#3
alohasurftoad Brigadier General 3124 Rep 4,371 Posts Drives: 440i gran coupe w/mppsk Join Date: Apr 2015 Location: hawaii iTrader: (0)	225/40/19 = 26.1" diameter 255/40/19 = 27.0" diameter diameter difference = 3.4% you may have transfer case issues. let us know how it holds up... . Last edited by alohasurftoad; 11-23-2021 at 11:15 PM..
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