Two wide linear grooves and two diagonal grooves deliver high drainage performance enhancing driving performance on wet roads. Three wide ribs in the center maximize vertical stiffness for enhanced braking performance. Wide center ribs provide maximized vertical stiffness for enhanced high-speed forward driving stability. Maximized diagonal block stiffness enhances handling performance when cornering. Caution : Never store or use the N’Fera SUR4G below -10℃(14℉) as this may damage the tire and impede performance.