2024 GMC Hummer EV SUV tire size
Most common factory size
LT305/70R18
- Factory sizes
- 1
- Across 4 trims
- Trims with no size
- 6
- Diameter
- 34.81 in
- Revs per mile
- 579
Tire sizes by trim
Source marks: one source
| Size | Trims | Width, mm | Sidewall, % of width | Rim, in | Diameter, in | Sidewall, in | Revs per mile |
|---|---|---|---|---|---|---|---|
| LT305/70R18 | All 4 trims | 305 | 70 | 18 | 34.81 | 8.41 | 579 |
What LT305/70R18 means
| Part | Number | Meaning |
|---|---|---|
| Type | LT | Light truck tire. |
| Width | 305 mm | Tread width. 12.0 in. |
| Sidewall | 70 | Sidewall height is 70% of the width. |
| Construction | R | Radial tire. |
| Rim | 18 in | Fits 18 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 |
|---|---|---|---|---|
| 285/75R18 | 18 | 34.83 | +0.1% | 60.0 mph |
| 325/65R18 | 18 | 34.63 | -0.5% | 60.3 mph |
| 315/70R17 | 17 | 34.36 | -1.3% | 60.8 mph |
| 285/75R17 | 17 | 33.83 | -2.8% | 61.7 mph |
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