Crushed walnut shells are infused throughout the tread compound to scratch and bite into ice and snow for improved traction while bamboo charcoal absorbs water on the road surface.
Siping is one of the most important tire technologies for wet and snow traction. On the NT90W, Nitto uses densely packed 3D Multiwave and 3D Interlocking sipes that provide stable handling performance with less tread flex. The secret is their interlocking ripple design.
A tire's compound greatly influences its performance characteristics. Nitto revolutionized its winter tire technology by introducing a dual zone compound. The inner half of the tire aids in winter acceleration/braking and the outer half of the tire aids in winter handling.Silica is equally distributed throughout the tread compound for improved winter handling. This helps the tire maintain flexibility at low operating temperatures.