Tyre advice

moprey93 · 03-22-2026, 01:21 PM

I’m purchasing a 2020 X4 M Sport with a trye and wheel package. It will come with 21” wheels, but what should they run on? They are currently on 255 40 21 and 275 35 21, but I want to be sure that is correct before I seal the deal.

Guess my main concern is avoiding any issues from running them on the wrong trye

DanG · 03-23-2026, 07:33 PM

Discount Tires say the correct size is 245/40/21 front and 275/35/21 rear.

03-22-2026, 01:21 PM	#1
moprey93 Registered 4 Rep 4 Posts Drives: BMW X5 E70 Join Date: Oct 2024 Location: Belfast iTrader: (0)	Tyre advice - 21" I’m purchasing a 2020 X4 M Sport with a trye and wheel package. It will come with 21” wheels, but what should they run on? They are currently on 255 40 21 and 275 35 21, but I want to be sure that is correct before I seal the deal. Guess my main concern is avoiding any issues from running them on the wrong trye
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03-23-2026, 07:33 PM	#2
DanG Major General 12252 Rep 7,498 Posts Drives: 2018 M2 AW DCT Join Date: Aug 2012 Location: Seattle, WA iTrader: (1) Garage List 2018 BMW M2 [8.01]	Discount Tires say the correct size is 245/40/21 front and 275/35/21 rear. __________________ BMWCCA member Puget Sound Chapter
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