A pneumatic tire comprising: a tread portion provided with a plurality of shoulder lateral grooves extending axially outwardly to the tread edge (Te) and then radially inwardly from the tread edge (Te), and a plurality of shoulder blocks divided by the shoulder lateral grooves , wherein each of the shoulder blocks has a side surface extending radially inwardly from the tread edge (Te), the side surface includes a first surface section and a second surface section which are arranged in the circumferential direction of the tire , and protrude more outwardly of the tire than the groove bottom surfaces of the shoulder lateral grooves , in a tire meridian section including the first surface section , the profile line (J1) of the first surface section extends from the tread edge (Te) to a position corresponding to a position of the radial inner ends of the shoulder lateral grooves , and in a tire meridian section including the second surface section , the profile line (J2) of the second surface section extends from the tread edge (Te) to a position corresponding to the above-said position of the radial inner ends of the shoulder lateral grooves through a path more inwardly of the tire than that of the profile line (J1) of the first surface section , characterized in that each of the shoulder lateral grooves comprises a main portion extending axially outwardly at least to a position corresponding to the tread edge (Te), and a secondary portion extending radially inwardly from the main portion while inclining toward one side in the tire circumferential direction at an angle θ with respect to the main portion through between the adjacent shoulder blocks , wherein the angle θ is in a range from 20 to 45 degrees. a tread portion provided with a plurality of shoulder lateral grooves extending axially outwardly to the tread edge (Te) and then radially inwardly from the tread edge (Te), and a plurality of shoulder blocks divided by the shoulder lateral grooves , wherein each of the shoulder blocks has a side surface extending radially inwardly from the tread edge (Te), the side surface includes a first surface section and a second surface section which are arranged in the circumferential direction of the tire , and protrude more outwardly of the tire than the groove bottom surfaces of the shoulder lateral grooves , in a tire meridian section including the first surface section , the profile line (J1) of the first surface section extends from the tread edge (Te) to a position corresponding to a position of the radial inner ends of the shoulder lateral grooves , and in a tire meridian section including the second surface section , the profile line (J2) of the second surface section extends from the tread edge (Te) to a position corresponding to the above-said position of the radial inner ends of the shoulder lateral grooves through a path more inwardly of the tire than that of the profile line (J1) of the first surface section , characterized in that each of the shoulder lateral grooves comprises a main portion extending axially outwardly at least to a position corresponding to the tread edge (Te), and each of the shoulder lateral grooves comprises a main portion extending axially outwardly at least to a position corresponding to the tread edge (Te), and a secondary portion extending radially inwardly from the main portion while inclining toward one side in the tire circumferential direction at an angle θ with respect to the main portion through between the adjacent shoulder blocks , wherein the angle θ is in a range from 20 to 45 degrees. <EOS>