A pneumatic tire includes a block (41) formed by being partitioned by a main groove (15) and lateral grooves (20 and 25), and a block traversing sipe (45) which is a sipe longitudinally traversing the block (41), in which the block traversing sipe (45) has a zigzag shape that is constituted by a plurality of longitudinal sipe portions (42) extending in a circumferential direction of the tire, and a lateral sipe portion (43) extending in a tire width direction and connecting end portions of two longitudinal sipe portions (42), and a longitudinal sipe portion (42) closer to a kick-out side of the block (41) has a narrower width.

A pneumatic tire includes blocks (36 and 41) formed by main grooves (10 and 15) extending in a circumferential direction of the tire and lateral grooves (20 and 25) extending in a tire width direction, and notches (50, 60, and 70) in stepped side end portions of the blocks (36 and 41). The lateral grooves (20 and 25) extend obliquely such that a tire grounding end (E) side is grounded later. Portions adjacent to the notches (50, 60, and 70) on the tire grounding end (E) side of the notches (50, 60, and 70) are protrusions (51, 61, and 71) protruding while forming an acute angle toward a tire equator (C) side.

To obtain a uniform ground contact pressure distribution in a pneumatic tire in which an edge portion of a land portion is provided with a notch portion. In a pneumatic tire according to an embodiment, an edge portion of a land portion formed in a tread portion is provided with a notch portion having a triangular shape in the plan view. A wavy sipe is provided to extend from an apex corner portion of the notch portion into the land portion and a straight sipe is provided adjacent to the wavy sipe with a gap interposed therebetween to extend into the land portion and to open to the edge portion of the land portion.

To prevent an interrupted portion in a sipe in a case in which a pneumatic tire with a sipe continuous in a tire circumferential direction has a pitch variation. A pneumatic tire according to an embodiment includes a tread portion 10 in which a plurality of pitch patterns having different pitch lengths are arranged in a tire circumferential direction. A rib extending in the tire circumferential direction of the tread portion is provided with a sipe continuous in the tire circumferential direction. The sipe is formed by repeating a sipe component in the tire circumferential direction and each pitch pattern includes the plurality of sipe components. A position in the sipe component at each boundary between the pitch patterns is set to the same position and a length of the sipe component in the tire circumferential direction is set according to the pitch lengths of the pitch pattern.

To obtain a uniform ground contact pressure distribution in a pneumatic tire including a zigzag-shaped sipe. In a pneumatic tire according to an embodiment, a land portion formed in a tread portion is provided with a zigzag-shaped sipe extending in a tire circumferential direction. The zigzag-shaped sipe is formed in a zigzag shape by a plurality of lateral sipe portions arranged at intervals in the tire circumferential direction and a plurality of longitudinal sipe portions alternately connecting the end portions thereof. Each longitudinal sipe portion includes an extension portion in which one end portion (for example, an end portion on a rear side in a rotation direction) of both end portions in the tire circumferential direction extends to the one side beyond a connection portion with the lateral sipe portion.

A pneumatic tire includes land portions defined by grooves, and sipes that are formed in the land portions and intersect the grooves. The sipes form acute angle portions and obtuse angle portions with the grooves. Notches are formed in the obtuse angle portions.

A pneumatic tire includes a center land portion between two center main grooves, a mediate land portion between a center main groove and a shoulder main groove, and a shoulder land portion between the shoulder main groove and a grounding end (E). Each of the center main grooves extends in a zigzag manner by alternately arranging long first groove portions and short second groove portions that are inclined with respect to a circumferential direction of the tire, respectively. A bulging portion in a tire width direction is formed in the center land portion. Each of the first groove portions of the center main groove is inclined such that a portion to be grounded later heads toward the grounding end (E) side. Each first lateral groove traverses the mediate land portion and the shoulder land portion and forms a notch in the bulging portion in the center land portion.

A tire (1) made of rubber material, comprising a tread (2), said tread having a tread surface (20) intended to come into contact with a road surface when the tire is being driven on, this tread surface having, in cross section, a certain curvature. The tread surface (20) comprises, over at least 80% of its surface, a texture (3) contrasting with the rest of the tire, this texture (3) having a plurality of elements that protrude from or are recessed into the tread surface (20), and each element extends perpendicularly (=90)to the tread surface (20) along the curvature of this tread surface (20).

A tread surface of a pneumatic tire is configured so that, given an inner region inward from shoulder circumferential main grooves in a tire lateral direction, and outer regions outward from the shoulder circumferential main grooves in the tire lateral direction, blocks positioned in the inner region are defined into three or more small blocks by narrow grooves, and blocks positioned in the outer regions are defined into a number of small blocks by the narrow grooves, the number being at least one less than the number of small blocks defined in the blocks positioned in the inner region. The small blocks including frontmost portions of the blocks in a tire rotation direction are leading-side blocks, and the small blocks including backmost portions of the blocks in the tire rotation direction are trailing-side blocks. The leading-side blocks have a surface area that is less than that of the trailing-side blocks.

In a pneumatic tire, a lug groove is configured so that a portion thereof defining a leading side of a block in a rotation direction is inclined toward a trailing side in the rotation direction as that portion extends outward in a lateral direction from an equator line side. Among small blocks defined in the block by narrow grooves, a small block adjacent to the lug groove defining the leading side of the block in a rotation direction, and to a circumferential main groove defining the equator line side is a leading-side block, and a small block with a portion positioned on a backmost side of the block in the rotation direction is a trailing-side block. Among the small blocks, the trailing-side block has a greater surface area than that of the leading-side block, and intermediate blocks each have a greater surface area than the trailing-side block.