ProPublica

Journalism in the Public Interest

HERO

HR558

Size Temperature Rating Traction Rating Treadwear Rating
All sizes
C B A
C B A AA

HR668

Size Temperature Rating Traction Rating Treadwear Rating
All sizes
C B A
C B A AA

MILANZA HZ-1

Size Temperature Rating Traction Rating Treadwear Rating
All sizes
C B A
C B A AA

Sources: NHTSA Uniform Tire Quality Grading Standards, TireReview.com