Rocky Mountain tires: UTQG grades
Rated lines2
Median treadwear280
Highest treadwear280
1 of these lines also appear under other brand names in NHTSA's data (marked ⚠). Their brand attribution may be wrong, so they are left out of the stats above and of our rankings.
Every Rocky Mountain tire line in NHTSA's Uniform Tire Quality Grading data, sorted by highest treadwear grade.
| Tire line | Treadwear | Traction | Temp. | Entries |
|---|---|---|---|---|
| Z36 ⚠ | 320 | A | B | 1 |
| ZETRO | 280 | AA | A | 1 |