Delta
6 tire lines and 56 grade rows in the NHTSA ratings file. Treadwear spans 380–700.
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 |
|---|---|---|---|---|
| ESTEEM ULTRA (H & V-rated) | 1 | 600 | A | A |
| ESTEEM ULTRA (T range) | 10 | 600–700 | A | B |
| ESTEEM ULTRA (W-rated) | 1 | 440 | A | A |
| ESTEEM XLE | 40 | 500–700 | A | AB |
| Grand Prix Tour RS | 3 | 380–500 | A | AB |
| Trailcutter AT 4S | 1 | 600 | A | B |