2026 Toyota GR86 tire size

Most common factory size

P215/40R18

Tire sizes by trim

Source marks: one source

2026 Toyota GR86 tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
P215/40R18	Premium RWD, Yuzu Edition RWD	215	40	18	24.77	3.39	814
P215/45R17	RWD	215	45	17	24.62	3.81	819

What P215/40R18 means
Part	Number	Meaning
Type	P	Passenger car tire.
Width	215 mm	Tread width. 8.5 in.
Sidewall	40	Sidewall height is 40% 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 P215/40R18
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
245/35R18	18	24.75	-0.1%	60.0 mph
295/25R19	19	24.81	+0.1%	59.9 mph
215/45R17	17	24.62	-0.6%	60.4 mph
295/30R18	18	24.97	+0.8%	59.5 mph
225/45R17	17	24.97	+0.8%	59.5 mph
255/30R19	19	25.02	+1.0%	59.4 mph
255/35R18	18	25.03	+1.0%	59.4 mph
205/50R17	17	25.07	+1.2%	59.3 mph

Sizes within 3% of P215/45R17
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
185/60R16	16	24.74	+0.5%	59.7 mph
245/35R18	18	24.75	+0.5%	59.7 mph
215/40R18	18	24.77	+0.6%	59.6 mph
205/40R18	18	24.46	-0.7%	60.4 mph
195/55R16	16	24.44	-0.7%	60.4 mph
205/55R16	16	24.88	+1.1%	59.4 mph
175/60R16	16	24.27	-1.4%	60.9 mph
295/30R18	18	24.97	+1.4%	59.2 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.