PNEUMATIC TIRE

A pneumatic tire 1 comprises a sidewall portion 3 provided with a side protector 9 protruding from a contour line S of the sidewall portion. The side protector 9 is composed of first protector blocks 11 arranged in the tire circumferential direction at intervals and second protector ribs 12 connecting therebetween. In a tire meridian section including each second protector rib 12, the second protector rib 12 has a triangular cross-sectional shape having an apex 13 at which the protruding height from the contour line S becomes maximum, and radially outer and inner oblique sides 14 and 15 extending radially outwardly and inwardly from the apex 13. Each of the radially outer and inner oblique sides 14 and 15 is a concave circular arc whose center is positioned outside the tire.