2026 Ford Bronco tire size
Most common factory size
LT315/70R17
- Factory sizes
- 6
- Across 7 trims
- Trims with it
- 2 of 7
- Trims with no size
- 13
- Diameter
- 34.36 in
- Revs per mile
- 587
Tire sizes by trim
Source marks: one source
| Size | Trims | Width, mm | Sidewall, % of width | Rim, in | Diameter, in | Sidewall, in | Revs per mile |
|---|---|---|---|---|---|---|---|
| LT315/70R17 | Heritage Edition 4WD, Stroppe Edition 4WD | 315 | 70 | 17 | 34.36 | 8.68 | 587 |
| P225/70R16 | Base Style 4WD | 225 | 70 | 16 | 28.40 | 6.20 | 710 |
| 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 |
| LT285/70R17 | Badlands 4WD | 285 | 70 | 17 | 32.71 | 7.85 | 617 |
| 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. |
Other sizes that fit
Within 3% of the stock diameter. A common shop guideline, not a maker spec.
| 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 |
| Size | Rim, in | Diameter, in | Change | Speedo reads at 60 mph |
|---|---|---|---|---|
| 225/65R17 | 17 | 28.52 | +0.4% | 59.8 mph |
| 235/60R17 | 17 | 28.10 | -1.1% | 60.6 mph |
| 235/65R16 | 16 | 28.03 | -1.3% | 60.8 mph |
| 215/65R17 | 17 | 28.00 | -1.4% | 60.9 mph |
| 215/70R17 | 17 | 28.85 | +1.6% | 59.1 mph |
| 235/75R15 | 15 | 28.88 | +1.7% | 59.0 mph |
| 235/70R16 | 16 | 28.95 | +1.9% | 58.9 mph |
| 215/70R16 | 16 | 27.85 | -1.9% | 61.2 mph |
| 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 |
| 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 |
| Size | Rim, in | Diameter, in | Change | Speedo reads at 60 mph |
|---|---|---|---|---|
| 265/70R18 | 18 | 32.61 | -0.3% | 60.2 mph |
| 285/65R18 | 18 | 32.59 | -0.4% | 60.2 mph |
| 245/75R18 | 18 | 32.47 | -0.7% | 60.4 mph |
| 275/70R18 | 18 | 33.16 | +1.4% | 59.2 mph |
| 275/65R18 | 18 | 32.07 | -1.9% | 61.2 mph |
| 255/75R17 | 17 | 32.06 | -2.0% | 61.2 mph |
| 255/70R18 | 18 | 32.06 | -2.0% | 61.2 mph |
| 235/80R17 | 17 | 31.80 | -2.8% | 61.7 mph |
No other factory size within 3% of 37x12.50R17.
Checked against 292 factory sizes listed for 2009-2027 US models.
What this cannot tell you
Tire pressure is on the driver door sticker. Not in this data.
Optional wheel packages may differ.
- Two or more sources agree
- One source
- Model-level or estimate
- Sources differ