2020 BMW X2 tire size

Most common factory size

P225/50R18

Tire sizes by trim

Source marks: one source

2020 BMW X2 tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
P225/50R18	sDrive28i FWD, xDrive28i AWD	225	50	18	26.86	4.43	751
P225/45R19	M35i AWD	225	45	19	26.97	3.99	748

What P225/50R18 means
Part	Number	Meaning
Type	P	Passenger car tire.
Width	225 mm	Tread width. 8.9 in.
Sidewall	50	Sidewall height is 50% of the width.
Construction	R	Radial tire.
Rim	18 in	Fits 18 in wheels.

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

Sizes within 3% of P225/50R18
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
225/45R19	19	26.97	+0.4%	59.7 mph
225/55R17	17	26.74	-0.4%	60.3 mph
245/40R19	19	26.72	-0.5%	60.3 mph
205/60R17	17	26.69	-0.6%	60.4 mph
255/40R19	19	27.03	+0.6%	59.6 mph
245/45R18	18	26.68	-0.7%	60.4 mph
255/45R18	18	27.04	+0.7%	59.6 mph
195/50R19	19	26.68	-0.7%	60.4 mph

Sizes within 3% of P225/45R19
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
255/35R20	20	27.03	+0.2%	59.9 mph
255/40R19	19	27.03	+0.2%	59.9 mph
255/45R18	18	27.04	+0.2%	59.9 mph
225/50R18	18	26.86	-0.4%	60.3 mph
295/35R19	19	27.13	+0.6%	59.7 mph
245/35R20	20	26.75	-0.8%	60.5 mph
305/30R20	20	27.20	+0.9%	59.5 mph
285/30R20	20	26.73	-0.9%	60.5 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.