Pneumatic tires having a tread of an oriented rubber

In a pneumatic tire comprising;

• a tread made from an oriented rubber sheet having a modulus ratio of 300% tensile modulus in a circumferential direction of the tire to a 300% tensile modulus in a widthwise direction of the tire in a central region of the tread which is larger by at least +0.1 times than corresponding modulus ratios in each side region of the tread, and the modulus ratio is 1.1-1.5 in the central region of the tread and 0.9-1.2 in the side region of the tread, and the rubber sheet is made by a process of extruding rubber by an extruder having an extrusion head including orientation controlling flow-paths consisting of a squeezing path to orient the rubber in said central region of said rubber sheet in the circumferential direction of the tire and spreading paths located on both sides of the squeezing path to orient the rubber in each side region in the widthwise direction of the tire.