2018 Chevrolet Traverse Tire Sizes
The 2018 Chevrolet Traverse has three listed tire sizes: 255/50R21, 255/55R20, and 255/65R18. These are the sizes to compare when checking a replacement tire; match the complete size marking, not just the wheel diameter.
The numbers identify different tire and wheel dimensions, so the listed sizes are alternatives rather than interchangeable descriptions of one tire. The facts do not specify which size belongs to each trim or configuration, so confirm the size for your vehicle on the door jamb or in the owner's manual.
The available facts list sizes for the 2018 model only and do not identify changes by trim or engine. If your vehicle's label or manual shows a different fitment, follow that vehicle-specific information rather than assuming one of these sizes applies.
- 255/50R21 · 255/55R20 · 255/65R18 · 255/60R19
- OEM tire sizes
- Distinct OEM sizes255/50R21 · 255/55R20 · 255/65R18 · 255/60R19
- Calculated overall diameter31.0–31.1 in
Calculated from catalog valuesOverall diameter is calculated from the stored OEM size string.
| Configuration | Wheel | Tire | Overall diameter | Bolt |
|---|---|---|---|---|
| 2.0T | 8×20 | 255/55R20 | 31.0 in | 6x120 |
| 2.0T | 7.5×18 | 255/65R18 | 31.1 in | 6x120 |
| 2.0T | 8×19 | 255/60R19 | 31.0 in | 6x120 |
| 3.6 | 7.5×18 | 255/65R18 | 31.1 in | 6x120 |
| 3.6 | 8×20 | 255/55R20 | 31.0 in | 6x120 |
| 3.6 | 8×19 | 255/60R19 | 31.0 in | 6x120 |
| 3.6 | 7.5×18 | 255/65R18 | 31.1 in | 6x120 |
| 3.6 | 8×20 | 255/55R20 | 31.0 in | 6x120 |
| 3.6 | 8×19 | 255/60R19 | 31.0 in | 6x120 |
| 3.6 | 7.5×18 | 255/65R18 | 31.1 in | 6x120 |
| 3.6 | 8×20 | 255/55R20 | 31.0 in | 6x120 |
| 3.6 | 8×19 | 255/60R19 | 31.0 in | 6x120 |
Compare a size
This figure is calculated from stored catalog values, not a separate manufacturer field.