Rocky Mountain Z36: UTQG grades
Treadwear320
Best tractionA
Best temperatureB
Heads-up: the same tire line name appears under more than one brand in NHTSA's data, so the brand shown here may not be the tire's maker. Check the brand and grades molded on the sidewall.
NHTSA lists 1 rating entry for this tire line. Sizes are shown exactly as published.
| Size / series (as published) | Treadwear | Traction | Temperature |
|---|---|---|---|
| 15" | 320 | A | B |
Other Rocky Mountain tire lines
- ZETRO 280
What do these grades mean? See our guides. Always confirm the grades molded on the tire sidewall before you buy.