- Four straight circumferential grooves and unique blading in tread area for enhanced wet traction - Tread Life Limited Warranty (See warranty brochure for complete details): S and T = 70,000 miles/110,000 kilometers, H = 60,000 miles/95,000 kilometers, V = 45,000 miles/70,000 kilometers - UTQG: S & T rated 620 A B, H rated 560 A A, V rated 400 A A - M S rated for all-season grip