Switching tire sidewall from 40 to 45 viable on 19" M440i GC rims?

saudisinaudis · 04-05-2023, 02:57 PM

G26, tire profile is 245/40R19 on 8.5 rim width
Purpose is to cover wide fender well. Will it cause friction?

tturedraider · 04-05-2023, 03:04 PM

Unless you also change your rear tires it will screw up your xDrive. As in it will damage your xDrive system.

saudisinaudis · 04-05-2023, 03:10 PM

Quote:

Originally Posted by tturedraider

Unless you also change your rear tires it will screw up your xDrive. As in it will damage your xDrive system.

So if I do change all four, no bad consequences?

tturedraider · 04-05-2023, 03:24 PM

Quote:

Originally Posted by saudisinaudis

So if I do change all four, no bad consequences?

I’m not sure. I’ll let someone else chime in on that. It would increase your overall tire diameter by a full inch. Only a half inch increase in radius. I think the odds of rubbing with that small change are low, but I can’t say for certain.

saudisinaudis · 04-05-2023, 03:26 PM

Quote:

Originally Posted by tturedraider

I’m not sure. I’ll let someone else chime in on that. It would increase your overall tire diameter by a full inch. Only a half inch increase in radius. I think the odds of rubbing with that small change are low, but I can’t say for certain.

It shouldn’t, given that lowering springs lower by up to 35mm (more than an inch) on xDrive.

04-05-2023, 02:57 PM	#1
saudisinaudis Private First Class 59 Rep 198 Posts Drives: M440i xDrive GC Join Date: Oct 2022 Location: Saudi Arabia, Jeddah iTrader: (0)	Switching tire sidewall from 40 to 45 viable on 19" M440i GC rims? G26, tire profile is 245/40R19 on 8.5 rim width Purpose is to cover wide fender well. Will it cause friction?
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04-05-2023, 03:04 PM	#2
tturedraider Major General 4975 Rep 6,241 Posts Drives: 2018 340i M Sport Join Date: Apr 2006 Location: Chicago, Edgewater (via Texas & Tennessee) iTrader: (0) Garage List 2018 BMW 340i M Sport [9.38] 2020 BMW M340i xDrive [10.00] 2018 BMW 340i M Sport [8.00] 2006 BMW 330i Sport [4.50] 2004 BMW 330i ZHP [7.25] 2000 BMW 328i [6.00]	Unless you also change your rear tires it will screw up your xDrive. As in it will damage your xDrive system. Attached Images __________________ www.bmwcca.org member #388003 - Use me as a referral & you could win a one day ///M Driving School!! ___________________________________________
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