A pneumatic tire includes a sidewall surface with serrated portions, each of
the
serrated portions being formed by aligning numerous serrated concavo-convex stripes
thereon, the serrated portions being spirally arranged along a circumferential
direction of the tire. The concavo-convex stripes are formed by formation of concave
grooves on the sidewall surface. The depth of the concave grooves is 0.3 to 2.0
mm. An interval between adjacent serrated portions is set 5 mm or more when measured
along a radial direction of the tire.