2024 Ford Bronco tire size

Most common factory size

LT315/70R17

Tire sizes by trim

Source marks: one source

2024 Ford Bronco tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
LT315/70R17	Black Diamond 4WD, Heritage Edition 4WD, Badlands 4WD, Everglades 4WD, Wildtrak 4WD, Heritage Limited Edition 4WD	315	70	17	34.36	8.68	587
P255/75R17	Big Bend 4WD	255	75	17	32.06	7.53	629
P255/70R18	Outer Banks 4WD	255	70	18	32.06	7.03	629
37x12.50R17	Raptor 4WD	318	-	17	37.00	10.00	545

What LT315/70R17 means
Part	Number	Meaning
Type	LT	Light truck tire.
Width	315 mm	Tread width. 12.4 in.
Sidewall	70	Sidewall height is 70% 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 LT315/70R17
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
325/65R18	18	34.63	+0.8%	59.5 mph
305/70R18	18	34.81	+1.3%	59.2 mph
285/75R18	18	34.83	+1.4%	59.2 mph
285/75R17	17	33.83	-1.5%	60.9 mph

Sizes within 3% of P255/75R17
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
255/70R18	18	32.06	-0.0%	60.0 mph
275/65R18	18	32.07	+0.0%	60.0 mph
235/80R17	17	31.80	-0.8%	60.5 mph
245/75R18	18	32.47	+1.3%	59.2 mph
265/75R16	16	31.65	-1.3%	60.8 mph
265/70R17	17	31.61	-1.4%	60.9 mph
265/65R18	18	31.56	-1.5%	60.9 mph
285/65R18	18	32.59	+1.6%	59.0 mph

Sizes within 3% of P255/70R18
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
255/65R19	19	32.05	-0.0%	60.0 mph
255/75R17	17	32.06	+0.0%	60.0 mph
275/65R18	18	32.07	+0.1%	60.0 mph
235/80R17	17	31.80	-0.8%	60.5 mph
245/75R18	18	32.47	+1.3%	59.2 mph
265/70R17	17	31.61	-1.4%	60.9 mph
265/65R18	18	31.56	-1.5%	60.9 mph
285/65R18	18	32.59	+1.7%	59.0 mph

No other factory size within 3% of 37x12.50R17.

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.