x-drive tire difference

will_e92 · 03-30-2024, 08:41 PM

is a 3.64 difference ok for xdrive? i’m running 45/18 on rear and 40/18 on front

spazzz · 03-31-2024, 12:06 AM

One percent or lower is what you want. Just run a square setup.
If the 245/45/18 doesn't rub in the front use that size for both, front and rear.
Something tells me it will so use the 245/40

I think the standard go to is 235/40/18 and 265/35/18.
A couple Googles will tell you what's up.

vester86 · 04-01-2024, 03:21 PM

No, that difference is to big

AWD Addict · 04-01-2024, 03:47 PM

Gotta get below 1%. And the closer the better.

You'll wreck a transfer case. So don't screw around with it.

03-30-2024, 08:41 PM	#1
will_e92 Registered 0 Rep 2 Posts Drives: e92 335i Join Date: Mar 2024 Location: New York iTrader: (0)	x-drive tire difference is a 3.64 difference ok for xdrive? i’m running 45/18 on rear and 40/18 on front Attached Images
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03-31-2024, 12:06 AM	#2
spazzz Private First Class 122 Rep 150 Posts Drives: 2008 535xi MHD&XHP,2013 X1 35i Join Date: Jul 2015 Location: Madison,WI iTrader: (0)	One percent or lower is what you want. Just run a square setup. If the 245/45/18 doesn't rub in the front use that size for both, front and rear. Something tells me it will so use the 245/40 I think the standard go to is 235/40/18 and 265/35/18. A couple Googles will tell you what's up.
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04-01-2024, 03:21 PM	#3
vester86 Second Lieutenant 92 Rep 221 Posts Drives: BMW 330D '08 Join Date: Aug 2019 Location: Europe iTrader: (0)	No, that difference is to big
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04-01-2024, 03:47 PM	#4
AWD Addict Chief Executive 301 Rep 2,889 Posts Drives: 2008 335xi 6spd Coupe Join Date: Dec 2007 Location: Boston iTrader: (1) Garage List 2008 335xi [0.00]	Gotta get below 1%. And the closer the better. You'll wreck a transfer case. So don't screw around with it.
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