Hankook iON Supreme (OE)
Treadwear 190–340. Traction AA, A. Temperature A, AA. 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.
About this data
At least one value is outside the usual UTQG letters (traction AA, A, B, C and temperature A, B, C). It is shown as NHTSA published it.
| Size series | Treadwear | Traction | Temperature | Construction |
|---|---|---|---|---|
| 245/40R19Y XL | 220 | AA | A | Radial |
| 245/40R20Y XL | 190 | A | A | Radial |
| 245/40R21Y XL | 340 | A | A | Radial |
| 255/40R19Y XL | 220 | AA | A | Radial |
| 255/40R20Y XL | 200 | A | A | Radial |
| 265/35R21(Y) XL | 240 | A | AA | Radial |
| 295/30R21(Y) XL | 240 | A | AA | Radial |
| HL275/35R21Y XL | 340 | 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
855574, 856314, 856308, 855575, 856315, 860016, 860015, 856309