Nitto NT 555 at Wholesale Prices! Nitto NT 555 Tires - utilizing a racing concept design, Nitto Tire's engineers developed the NT-555 "Extreme ZR". With a specially formulated compound and one of the biggest contact patches available, the NT-555 provides superior traction, reliable handling, and delivers total vehicle control. The three-circumferential grooves channel water efficiently, while the lateral grooves break up the water wedge. This combination of grooves and channels reduces the chance of hydroplaning. Nitto NT 555 Tires. All Nitto NT 555 Tires Onsale Now! | 
