A tire comprises a tread portion including a shoulder land portion. The shoulder land portion is provided with shoulder lateral grooves extending from a shoulder circumferential groove to a first tread edge to divide the shoulder land portion into shoulder blocks. The axial width of the ground contacting top surface of each shoulder block is 35% to 48% of a half tread width from the tire equator to the first tread edge. The ground contacting top surface of each shoulder block is provided with only one or more shoulder sipes extending in a tire circumferential direction.