Prometer
19 tire lines and 28 grade rows in the NHTSA ratings file. Treadwear spans 200–700.
About this data
These are rows in NHTSA's ratings list, under the brand string that list stores. The list does not say whether a tire is still sold, and it has no category field. Light-truck tires, deep-tread winter-type snow tires, and temporary spare tires are outside the UTQG rule, so a missing line is not a grade. Sorting these rows is an ordering of NHTSA's list, not a ranking of the best tire. Data last verified October 21, 2026 (UTC). Data-quality notes.
| Tire line | Size rows | Treadwear | Traction | Temperature |
|---|---|---|---|---|
| A/S | 1 | 400 | B | C |
| ASTRA | 1 | 420 | A | B |
| AVISTA | 3 | 620–700 | A | B |
| MAXIMA RADIAL GTS (T) | 1 | 420 | A | B |
| PERFORMANCE AS (H) | 1 | 300 | A | A |
| PERFORMANCE AS (T) | 1 | 300 | A | B |
| PERFORMANCE AS (V) | 1 | 220 | A | A |
| S990 Performance X/P | 1 | 420 | AA | A |
| SATELLITE III | 1 | 320 | B | B |
| SOLAR 4XS (S, T rating) | 1 | 400 | A | B |
| SOLAR 4XS+ | 1 | 440 | A | B |
| SOLAR 4XS+ (H and V rating) | 1 | 440 | A | A |
| SPECTRUM METRIC AS | 1 | 320 | B | B |
| SX-1 (H & V RATED) | 1 | 340 | A | A |
| SX-1 (Y RATED) | 1 | 200 | AA | A |
| SX-1EVO | 1 | 340 | A | A |
| SX-608 | 7 | 320–460 | A | A |
| SX-608 (H RATED) | 1 | 460 | A | A |
| SX-608 (V RATED) | 2 | 200–320 | A | A |