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Tire Tracker

PARNELLI

P SERIES (HR SIZES) (ASYM)

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

P SERIES (HR SIZES) (DIRECT)

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

P SERIES (ZR SIZES)

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

R SERIES

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

S SERIES (SR SIZES)

Size Temperature Rating Traction Rating Treadwear Rating
P295/50R15
C B A
C B A AA

S SERIES (SR SIZES) 50/55 SR

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

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