Hankook Optimo H426
Treadwear 380–440. Traction A. Temperature A. Construction: Radial.
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.
Grades can differ by the size series NHTSA published. Size text is shown as published, not converted into a standard size code.
| Size series | Treadwear | Traction | Temperature | Construction |
|---|---|---|---|---|
| 185/65R15 | 440 | A | A | Radial |
| 195/50R16 | 440 | A | A | Radial |
| 195/65R15 | 440 | A | A | Radial |
| 205/55R16 | 440 | A | A | Radial |
| 215/45R17 | 440 | A | A | Radial |
| 215/60R16 | 380 | A | A | Radial |
| 215/70R16 | 440 | A | A | Radial |
| 225/45R18 | 440 | A | A | Radial |
| 235/55R17 | 440 | A | A | Radial |
| 245/50R18 | 440 | A | A | Radial |
| 255/45R20 | 440 | A | A | Radial |
| 255/50R20 | 440 | A | A | Radial |
| All sizes Except | 440 | A | A | Radial |
| Other Sizes | 380 | A | A | Radial |
| P185/65R14 | 440 | A | A | Radial |
| P185/65R15 | 440 | A | A | Radial |
| P195/55R15 | 440 | A | A | Radial |
| P195/65R15 | 440 | A | A | Radial |
| P205/45R16 | 440 | A | A | Radial |
| P205/55R16 | 440 | A | A | Radial |
| P205/60R16 | 380 | A | A | Radial |
| P205/65R15 | 380 | A | A | Radial |
| P215/55R17 | 440 | A | A | Radial |
| P225/45R18 | 440 | A | A | Radial |
| P225/50R17 | 380 | A | A | Radial |
| P225/55R17 | 440 | A | A | Radial |
| P235/50R18 | 440 | A | A | Radial |
Read the grades
What UTQG treadwear, traction, and temperature mean. The numbers compare tires on a government test. They are not a mileage warranty.
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NHTSA record ids in this line
855709, 855710, 855711, 855712, 855713, 855714, 855715, 855716, 855717, 855718, 855719, 855720, 855721, 855722, 855723, 855724, 855725, 855726, 855727, 855728, 855729, 855730, 855731, 855732, 855733, 855734, 855735