Pneumatic tire

A pneumatic tire comprising:

• a tread portion;
• a first sidewall portion connected to the tread portion;
• and
• a belt layer embedded in the tread portion, the belt layer extending in a tire axial direction, wherein
• at least one side block protruding outward from a sidewall reference surface in the tire axial direction is at the first sidewall portion,
• the side block includes an outer end in a tire radial direction,
• the outer end is in a region extending over 30 mm in the tire radial direction around a point of intersection of an outer surface of the first sidewall portion, and an imaginary extension line obtained by extending the belt layer toward the first sidewall portion, on a tire meridional cross-section,
• the side block includes
• a pair of first portions protruding from the sidewall reference surface over a first protrusion height and extending in the tire radial direction, and
• a second portion protruding from the sidewall reference surface over a second protrusion height less than the first protrusion height, the second portion being between the pair of first portions,
• the second portion includes a second top surface parallel to the sidewall reference surface,
• each of the pair of first portions includes a first top surface parallel to the sidewall reference surface, an outer wall surface connecting between the first top surface and the sidewall reference surface, and an inner wall surface connecting between the first top surface and the second top surface, and
• at a block outer position distant from the outer end of the side block toward an inner side in the tire radial direction over 5 mm, and a block inner position distant from an inner end, in the tire radial direction, of the side block toward an outer side in the tire radial direction over 15 mm, a sum of lengths of a pair of the first top surfaces and a length of the second top surface is from 20% to 75% of a length of the side block in a tire circumferential direction on the sidewall reference surface, on a cross-section obtained by cutting the side block in a direction normal to the sidewall reference surface along the tire circumferential direction.