A pneumatic tire includes: a first longitudinal groove and a second longitudinal groove extending in a tire circumferential direction; a first lateral groove extending obliquely with respect to a tire width direction and connected to the first longitudinal groove and the second longitudinal groove; a second lateral groove extending obliquely toward a side opposite to the first lateral groove with respect to a tire width direction and connected to the first longitudinal groove and the second longitudinal groove; and a trapezoidal block defined by the first longitudinal groove, the second longitudinal groove, the first lateral groove, and the second lateral groove. The block includes a first sipe and a second sipe extending obliquely toward opposite sides in the tire width direction.

In a pneumatic tire, a tread comprises a plurality of main grooves including a first main groove that extends in straight fashion in a tire circumferential direction, and at least one first recess that is recessed toward a first side in a tire axial direction from the first main groove and that is arranged at a portion in the tire circumferential direction of the first main groove, and the at least one first recess comprises a first recess side face that is planar and that extends toward an interior in a tire radial direction from the tread surface, and a first recess bottom that is planar and that extends toward the first side in the tire axial direction from the first main groove so as to intersect the first recess side face.

A pneumatic tire comprises an inner circumferential groove and an outer circumferential groove in a tread portion and extending in a tire circumferential direction. A land portion between circumferential grooves is defined by the inner and outer circumferential grooves. The pneumatic tire includes first and second auxiliary grooves disposed in the tire circumferential direction that communicate with the inner and outer circumferential grooves, respectively, and terminate within the land portion between circumferential grooves. The first auxiliary grooves and the second auxiliary grooves have a non-intersecting, alternating arrangement. At least one narrow groove is disposed between adjacent first auxiliary grooves. At least two narrow grooves are disposed between adjacent second auxiliary grooves. The at least two narrow grooves between second auxiliary grooves are disposed in a greater number than the number of the at least one narrow groove between first auxiliary grooves.

A pneumatic tire, includes: an annular-shape tread portion; a sidewall portions; and bead portions. JIS hardness of tread rubber is within a range of 40 to 60 and snow traction index is 180 or higher. A rib positioned between circumferential grooves is demarcated in a center region of the tread portion. Closed grooves are formed in the rib. The closed grooves are inclined with regard to a tire axial direction such that a closed end faces a leading side. A groove wall of the closed groove on the leading side protrudes more outward in the tire axial direction than a groove wall on a trailing side. A difference between angles θ1 and θ2 of the groove walls on the leading and trailing sides of the closed grooves, respectively, with regard to the tire axial direction is within a range of 0°≤θ1-θ2≤5°.

A motorcycle tyre has a tread band including a central portion and two shoulder portions arranged at axially opposite sides of the central portion. The central portion includes a first plurality of grooves extended according to a substantially longitudinal direction and alternatively arranged at opposite sides of the equatorial plane of the tyre. Each groove of the first plurality of grooves has a substantially curvilinear course such as to form a concavity. The central portion further includes a sub-portion substantially free of grooves placed astride the equatorial plane of the tyre. Each of the shoulder portions includes a second plurality of grooves arranged obliquely relative to the equatorial plane of the tyre.

A pneumatic tire includes a tread portion provided with a circumferentially extending zigzag shoulder main groove arranged proximate to a tread edge, and a plurality of shoulder lateral grooves each extending axially outwardly from the shoulder main groove. Each of the shoulder lateral grooves includes a first portion and second portion. The first portion includes a first groove wall and an axially inner end connected to the shoulder main groove. The second portion is arranged axially outward of the first portion and includes a second groove wall. The second portion has a groove width and a groove depth greater than those of the first portion. The first groove wall of the first portion and the second groove wall of the second portion are smoothly continued.

A pneumatic tire comprises an inner circumferential groove and an outer circumferential groove in a tread portion and extending in a tire circumferential direction. A land portion between circumferential grooves is defined by the inner and outer circumferential grooves. The pneumatic tire includes first and second auxiliary grooves disposed in the tire circumferential direction that communicate with the inner and outer circumferential grooves, respectively, and terminate within the land portion between circumferential grooves. The first auxiliary grooves and the second auxiliary grooves have a non-intersecting, alternating arrangement. At least one narrow groove is disposed between adjacent first auxiliary grooves. At least two narrow grooves are disposed between adjacent second auxiliary grooves. The at least two narrow grooves between second auxiliary grooves are disposed in a greater number than the number of the at least one narrow groove between first auxiliary grooves.

A pneumatic tire 1 is provided in a tread portion 2 with a circumferential land region 6 provided with transverse sipes 15 extending across the entire width of the circumferential land region. Each of the transverse sipes 15 comprises an arc-shaped first portion 18 convexed toward one side in the tire circumferential direction and an arc-shaped second portion 19 convexed toward the other side in the tire circumferential direction and connected with the first portion 18 so as to have a wavy configuration. The transverse sipes 15 include a first transverse sipe 16 of which first portion 18 is deeper than the second portion 19 thereof, and a second transverse sipe 17 of which second portion 19 is deeper than the first portion 18 thereof.

A tire tread pattern includes a center land portion and an intermediate land portion on an outer side in a width direction thereof. A center land portion region includes no grooves, includes a first sipe having a wide width open to circumferential main grooves on both sides and includes a second sipe having a narrow width between adjacent first sipes and open to the circumferential main grooves on both sides. An intermediate land portion region includes an intermediate lug groove opening to a circumferential main groove in contact with the intermediate land portion. A circumferential direction distance between opening ends of the adjacent first sipes is equal to a distance between opening ends of adjacent intermediate lug grooves in which the region between at least some opening ends in the circumferential direction overlaps the region along the circumferential direction between the opening ends of the adjacent first sipes.

A tire having an outer middle land portion demarcated between an outer shoulder circumferential groove and an outer crown circumferential groove and located at an outer side of a vehicle when the tire is mounted on the vehicle, and an inner middle land portion demarcated between an inner shoulder circumferential groove and an inner crown circumferential groove and located at an inner side of the vehicle when the tire is mounted on the vehicle formed in a tread portion. The outer middle land portion has first outer middle sipes extending from the outer crown circumferential groove toward the outer shoulder circumferential groove and terminating within the outer middle land portion. The inner middle land portion has first inner middle sipes extending from the inner shoulder circumferential groove toward the inner crown circumferential groove and terminating within the inner middle land portion. An angle θ1 of each first outer middle sipe with respect to a tire axial direction is smaller than an angle θ2 of each first inner middle sipe with respect to the tire axial direction.