National tires: UTQG grades
Rated lines27
Median treadwear440
Highest treadwear600
7 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 National tire line in NHTSA's Uniform Tire Quality Grading data, sorted by highest treadwear grade.
| Tire line | Treadwear | Traction | Temp. | Entries |
|---|---|---|---|---|
| Trailcutter AT4S ⚠ | 660 | A | B | 1 |
| Trail Guide HLT | 600 | A | A | 1 |
| Tour Max GFT (T-rated) ⚠ | 500 | A | B | 1 |
| Trail Guide All Terrain | 500 | A | B | 1 |
| Ultrex Tour ASR T-rated | 500 | A | B | 1 |
| Wild Spirit HTS-C | 500 | A | A | 1 |
| Wild Spirit Radial ATS | 500 | A | B | 4 |
| Wild Spirit Sport CXV | 500 | A | B | 1 |
| Wild Spirit Sport HXT ⚠ | 500 | A | B | 3 |
| Tempra Radial SUV P-metric | 460 | A | B | 1 |
| Tour Max GFT (H-rated) ⚠ | 460 | A | A | 1 |
| Ultrex Tour ASR H-rated | 460 | A | A | 1 |
| Wild Spirit Radial A/S P-metric | 460 | A | B | 1 |
| Sentinel ⚠ | 440 | A | A | 1 |
| Solar 4XS+ ⚠ | 440 | A | A | 1 |
| Solar 4XS+ (H&V Rated) | 440 | A | A | 1 |
| Solar 4XS+ (S&T Rated) | 440 | A | B | 1 |
| Solar HP 430 | 400–440 | A | A | 2 |
| Tempest Touring | 440 | A | B | 1 |
| Velozza STX & V rated) | 420 | A | A | 1 |
| Velozza ZXV4 | 340–420 | A | A | 20 |
| Venezia | 420 | A | A | 1 |
| Trail Guide AP | 400 | A | B | 5 |
| Viago A/S | 400 | A | A | 1 |
| Tour Max GFT (V-rated) ⚠ | 380 | A | B | 1 |
| Ultrex Tour ASR V-rated | 380 | A | A | 1 |
| Velozza ZXV (W & Y rated) | 360 | AA | A | 1 |