Abstract: A pneumatic tire includes a tread portion, a pair of sidewall portions, bead portions formed radially inside the sidewall portions, shoulder blocks arranged in the tire circumferential direction with first pitches on at least one of end portions of the tread portion, side protectors protruding axially outwardly on at least one of the sidewall portions which is located on a side of the shoulder blocks, a recessed portion between a pair of side protectors adjacent in the tire circumferential direction. The side protectors are arranged in the tire circumferential direction with second pitches larger than the first pitches. Each side protector is provided with at least one first groove extending radially inwardly from a side of the tread portion and terminating within the side protector and at least one second groove extending radially outwardly from a side of the bead portion and terminating within the side protector.

Abstract: A pneumatic tire comprises a tread portion, a pair of sidewall portions, bead portions formed radially inside the sidewall portions, shoulder blocks arranged in the tire circumferential direction with first pitches on at least one of end portions of the tread portion, side protectors protruding axially outwardly on at least one of the sidewall portions which is located on a side of the shoulder blocks, a recessed portion between a pair of side protectors adjacent in the tire circumferential direction. The side protectors are arranged in the tire circumferential direction with second pitches larger than the first pitches. Each of the side protectors is provided with at least one first groove extending radially inwardly from a side of the tread portion and terminating within the side protector and at least one second groove extending radially outwardly from a side of the bead portion and terminating within the side protector.

Abstract: 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.