Tread pattern design Nokian Tyres' symmetrical and directional tread pattern, especially designed for high-performance SUVs, ensures the stable driving feel of the tire. The longitudinal centre rib stabilises the movement of the lightly rolling SUV tire on all platforms, especially at high speeds. The heavy siping of the tread blocks improves the grip reserve of the tire. The deep transverse grooves combined with the strong, arrow-like directional tread and polished main grooves effectively remove water and slush. They are very effective at preventing treacherous slushplaning and aquaplaning.