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Tire Tracker

FIERCE

High-Performance Radial

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

Instinct VR

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

Instinct ZR

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

ST (20")

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

ST (22")

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

Ultra High-Performance Radial

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