Abstract: Provided is a pneumatic tire including: a belt reinforcing layer (12) having an outside end portion in the tire width direction disposed outside in the tire width direction than a tire circumferential groove (16) disposed at the outermost side in the tire width direction, in which a buttress portion (19) being positioned on the outside of a tread (15) in the tire width direction and connecting a surface (15a) of the tread (15) to a sidewall (20) is formed to have, in section in the tire width direction, an outer surface in a concave shape with a depth shallow enough not to be set into the inside in the tire width direction from the outside end of the surface (15a) of the tread (15) in the tire width direction.

Abstract: A belt width of an intersecting belt 15a having the maximum belt width is set to 80% or more of the maximum width of a carcass line; a difference in belt widths between the intersecting belt 15a and an intersecting belt 15b is set in the range of 10 mm to 50 mm on one side of the belt in the width direction; the intersecting belt 15a is not narrower than the circumferential belt 14, and the circumferential belt 14 is not narrower than the intersecting belt 15b; and a pneumatic tire according to the present invention has an interposed rubber 16 having a thickness increasing toward the widthwise outer side of the tire to be 3 mm or more, and a side-lower rubber 17 having an elastic modulus less than the elastic modulus of a coating rubber coating the circumferential belt 14.

Abstract: Provided is a pneumatic tire including: a belt reinforcing layer (12) having an outside end portion in the tire width direction disposed outside in the tire width direction than a tire circumferential groove (16) disposed at the outermost side in the tire width direction, in which a buttress portion (19) being positioned on the outside of a tread (15) in the tire width direction and connecting a surface (15a) of the tread (15) to a sidewall (20) is formed to have, in section in the tire width direction, an outer surface in a concave shape with a depth shallow enough not to be set into the inside in the tire width direction from the outside end of the surface (15a) of the tread (15) in the tire width direction.

Abstract: A belt width of an intersecting belt 15a having the maximum belt width is set to 80% or more of the maximum width of a carcass line; a difference in belt widths between the intersecting belt 15a and an intersecting belt 15b is set in the range of 10 mm to 50 mm on one side of the belt in the width direction; the intersecting belt 15a is not narrower than the circumferential belt 14, and the circumferential belt 14 is not narrower than the intersecting belt 15b; and a pneumatic tire according to the present invention has an interposed rubber 16 having a thickness increasing toward the widthwise outer side of the tire to be 3 mm or more, and a side-lower rubber 17 having an elastic modulus less than the elastic modulus of a coating rubber coating the circumferential belt 14.