Summer Tyres Size

braga · 08-10-2023, 03:11 PM

Hello, everyone!

I've an F25 28i with summer tires in config: 245/40/R20(front) and 275/35/R20(rear). Is it possible to change it for 245/45/R20 and 275/40/R20 respectively? Tyre diameter will be greater for 1" for the front, e.g.

Is it ok for xDrive system?

Thanks for help

pungo · 08-10-2023, 04:39 PM

Welcome to the forum...

No, front & rear tires need to remain the same diameter or the transfer case will be damaged.

08-10-2023, 03:11 PM	#1
braga Registered 0 Rep 1 Posts Drives: X3 F25 Join Date: Aug 2023 Location: Ukraine iTrader: (0)	Summer Tyres Size Hello, everyone! I've an F25 28i with summer tires in config: 245/40/R20(front) and 275/35/R20(rear). Is it possible to change it for 245/45/R20 and 275/40/R20 respectively? Tyre diameter will be greater for 1" for the front, e.g. Is it ok for xDrive system? Thanks for help Last edited by braga; 08-10-2023 at 04:53 PM..
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08-10-2023, 04:39 PM	#2
pungo Colonel 880 Rep 2,547 Posts Drives: Z4MC-X3-35i-525i, Corrado G60 Join Date: Nov 2007 Location: MD iTrader: (5) Garage List 2011 BMW X3 x35i [0.00] 2001 BMW 525i [0.00] 2007 BMW Z4 M Coupe [8.76]	Welcome to the forum... No, front & rear tires need to remain the same diameter or the transfer case will be damaged.
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