Firestone FS591 Plus Commercial Truck Tire (16 Ply) The FS591 Plus from Firestone Tire is a radial steer tire for commercial trucks used for long haul and regional hauling applications. FS591 tires are fuel efficient, SmartWay approved tires and feature special rubber compounding and construction to improve tire life and fight irregular wear. Featuring an innovative sidewall design that reduces overall tire weight without reducing durability. Featuring Firestone Ulti-Rib technology, the FS591 design fights against irregular wear. The FS591 features a continuous shoulder that provides long, even wear and reduced rolling resistance. The flow-through tread design of the FS591 provides excellent water evacuation for enhanced road grip. For the Firestone FS591 Plus commercial truck tire, call or order from our online tire store today. Ulti-Rib™ design combats the initiation and spread of irregular wear Continuous shoulder offers long, even wear and reduced rolling resistance Flow-through design allows for water evacuation to enhance road grip Stress release sipes fight irregular wear on main ribs by absorbing rib edge stresses in the footprint Thirsty cross-rib sipes improve traction by slicing through water for a solid grip on wet roads *20% better removal mileage than Yokohama 101ZL