2025 BMW 2 Series tire size

Most common factory size

P225/45R17

Tire sizes by trim

Source marks: one source

2025 BMW 2 Series tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
P225/45R17	228 xDrive Gran Coupe AWD	225	45	17	24.97	3.99	808
P225/40R18	M235 xDrive Gran Coupe AWD	225	40	18	25.09	3.54	804

What P225/45R17 means
Part	Number	Meaning
Type	P	Passenger car tire.
Width	225 mm	Tread width. 8.9 in.
Sidewall	45	Sidewall height is 45% of the width.
Construction	R	Radial tire.
Rim	17 in	Fits 17 in wheels.

Within 3% of the stock diameter. A common shop guideline, not a maker spec.

Sizes within 3% of P225/45R17
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
295/30R18	18	24.97	-0.0%	60.0 mph
255/35R18	18	25.03	+0.2%	59.9 mph
205/55R16	16	24.88	-0.4%	60.2 mph
205/50R17	17	25.07	+0.4%	59.8 mph
225/40R18	18	25.09	+0.5%	59.7 mph
215/40R18	18	24.77	-0.8%	60.5 mph
245/35R18	18	24.75	-0.9%	60.5 mph
185/60R16	16	24.74	-0.9%	60.6 mph

Sizes within 3% of P225/40R18
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
205/50R17	17	25.07	-0.1%	60.0 mph
255/35R18	18	25.03	-0.2%	60.1 mph
255/30R19	19	25.02	-0.3%	60.2 mph
225/35R19	19	25.20	+0.5%	59.7 mph
225/45R17	17	24.97	-0.5%	60.3 mph
295/30R18	18	24.97	-0.5%	60.3 mph
265/30R19	19	25.26	+0.7%	59.6 mph
205/45R18	18	25.26	+0.7%	59.6 mph

Checked against 292 factory sizes listed for 2009-2027 US models.

Tire pressure is on the driver door sticker. Not in this data.

Optional wheel packages may differ.