F15 tire size

emilth · 12-04-2023, 07:37 AM

I have extra tires from a G05, I was wondering if it is ok to put them on my 469M rims and under the F15?

305/40R20
275/45R20

markorak · 12-04-2023, 09:24 AM

As far as I know the G-Series has a different PCD (Pitch circle diameter) than the F and E series (which have 5x120)
The standard tire-specs on the f15 for 20 inch are 275/40R20 and 315/35R20.
Translating this into english: The tirespecs you have named have a higher aspectratio which means they are larger in diameter.
This means your odometer would be getting false information (slower turning of the wheel) which affects the kilometers and your speed on the dash. You'd need to have that recoded. Plus it's possible the tires would scrape somewhere if you turn the steering wheel all the way.

12-04-2023, 07:37 AM	#1
emilth New Member 0 Rep 11 Posts Drives: 2016 BMW X5 40E Join Date: Sep 2021 Location: Iceland iTrader: (0)	F15 tire size I have extra tires from a G05, I was wondering if it is ok to put them on my 469M rims and under the F15? 305/40R20 275/45R20
	Appreciate 0 Tweet Quote

12-04-2023, 09:24 AM	#2
markorak Registered 0 Rep 4 Posts Drives: 2015 X5 xDrive 40e Join Date: Dec 2023 Location: The Hague, Netherlands iTrader: (0) Garage List 2015 BMW X5 xDrive 40e [0.00]	As far as I know the G-Series has a different PCD (Pitch circle diameter) than the F and E series (which have 5x120) The standard tire-specs on the f15 for 20 inch are 275/40R20 and 315/35R20. Translating this into english: The tirespecs you have named have a higher aspectratio which means they are larger in diameter. This means your odometer would be getting false information (slower turning of the wheel) which affects the kilometers and your speed on the dash. You'd need to have that recoded. Plus it's possible the tires would scrape somewhere if you turn the steering wheel all the way.
	Appreciate 0 Quote

		BMW X5 and X6 Forum (F15/F16) > BMW X5 (F15) and BMW X6 (F16) Forum > BMW X5 and X6 (F15/F16) Forum
F15 tire size