Sumic
15 tire lines and 16 grade rows in the NHTSA ratings file. Treadwear spans 320–660.
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 |
|---|---|---|---|---|
| All Season | 1 | 600 | A | B |
| All Terrain | 1 | 540 | A | A |
| CLASSIC RADIAL SE | 1 | 560 | A | B |
| CLASSIC RADIAL SR | 1 | 560 | A | B |
| ECHELON HR | 1 | 420 | A | A |
| ECHELON PREMIER | 1 | 620 | A | B |
| ECHELON ULTRA LSH (H rated) | 1 | 540 | A | A |
| GRAND SPIRIT RADIAL G/T | 1 | 560 | A | B |
| Highway | 1 | 600 | A | A |
| HT-760 Trail Climber | 2 | 480–540 | A | B |
| NOVA | 1 | 320 | B | B |
| NOVA 70 | 1 | 320 | B | B |
| Sport | 1 | 500 | AA | A |
| Touring A/S | 1 | 600 | A | A |
| TRAILCUTTER AT4S | 1 | 660 | A | B |