Abstract: An outermost end of a carcass folded-up portion is located in a tire width direction inside than an end in the tire width direction of the outermost inclined belt layer, in the tire radial direction between a carcass main body portion and the innermost inclined belt layer. A carcass cord in the folded-up portion located on the outermost side of the tire and a belt cord of the outermost inclined belt layer cross each other to be inclined in the same direction in a tire circumferential direction as being from one side toward the other side in the tire width direction, a difference in inclination angle is 30° or less, a width of the outermost inclined belt layer is larger than that of the innermost inclined belt layer, and in-plane rigidity per unit width of the innermost inclined belt layer is higher than that of the outermost inclined belt layer.

Abstract: A sipe formed in a block of a pneumatic tire includes a first inclined portion inclined against a tire radial direction, a second inclined portion formed at an outer side in the tire radial direction with respect to the first inclined portion and inclined in a direction opposite to the first inclined portion with respect to the tire radial direction, a bent portion communicated with the first inclined portion and the second inclined portion and bent to be protruded toward a direction in which a gap between the first inclined portion and the second inclined portion becomes narrow, and a widened portion formed at an inner side in the tire radial direction with respect to the first inclined portion and widened in a groove width more than the first inclined portion. The widened portion is communicated with the first inclined portion and formed at a side of the bent portion with respect to an extension line of the first inclined portion.

Abstract: The interval along the tire circumferential direction between sipes adjacent in the tire circumferential direction is 2 to 10 times the depth of the sipes. In the depth direction of the sipes, the sipes each have at least three sipe portions divided by at least two bent portions, and a bent portion angle formed between adjacent sipe portions with one of the bent portions therebetween is greater at the tread surface side than at the sipe bottom side.

Abstract: The interval along the tire circumferential direction between sipes adjacent in the tire circumferential direction is 2 to 10 times the depth of the sipes. In the depth direction of the sipes, the sipes each have at least three sipe portions divided by at least two bent portions, and a bent portion angle formed between adjacent sipe portions with one of the bent portions therebetween is greater at the tread surface side than at the sipe bottom side.

Abstract: To improve motion performance of a tire on a dry road surface and also improve drainage performance of a land so as to improve motion performance of the tire on a wet road surface. A tire (1) includes a land (20) formed on a tread portion (2). A ground contact surface (30) of the land (20) is formed in a convex shape in which a plurality of curved portions (31 to 33) each having a predetermined curvature Rc, Re, and Rm is smoothly connected at least on a section of the land (20) in a tire width direction H. Rc<Re holds when a curvature of the center curved portion (31) including a center part (35) of the ground contact surface (30) is Rc and a curvature of the end curved portion (32) including an end portion (34) of the ground contact surface (30) is Re. The curvature Rm of the curved portion (33) located between the center curved portion (31) and the end curved portion (32) is within a range of Rc to Re.