A pneumatic tire has a tread portion 2 provided with: an outboard shoulder main groove 4 and an outboard crown main groove 6 extending circumferentially of the tire; first outboard shoulder axial grooves 12a extending from an outboard tread edge Teo to the outboard shoulder main groove 4; second outboard shoulder axial grooves 12b extending from the outboard tread edge Teo and terminating without reaching to the outboard shoulder main groove 4; first outboard middle axial grooves 16 extending from the outboard shoulder main groove 4 and terminating without reaching to the outboard crown main groove 6; and second outboard middle axial groove 22 extending from the outboard crown main groove 6 and terminating without reaching to the outboard shoulder main groove 4. The first outboard middle axial grooves 16 are aligned with the first outboard shoulder axial grooves 12a, respectively, so as to smoothly continue to the first outboard shoulder axial grooves 12a through the outboard shoulder main groove 4.

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.

This pneumatic tire includes, on the tread surface, land portions defined by circumferential main grooves extending continuously in the tread circumferential direction and by tread edges. An intermediate land portion on one side in the tread width direction, adjacent to the tire equatorial plane side of the outermost circumferential main groove on the one side, is formed into blocks only by sipes extending in the tread width direction, an intermediate land portion on the other side in the tread width direction, adjacent to a tire equatorial plane side of an outermost circumferential main groove on the other side, is formed in a ribbed shape, and intermediate land portion lug grooves are formed in the intermediate land portion on the other side, with one end opening into the outermost circumferential main groove on the other side, and the other end terminating within the intermediate land portion on the other side.

Provided is a pneumatic tire. A profile line (PL1) of a center land portion (X) protrudes further outward in the tire radial direction than a standard profile line (PL0). Profile lines (PL2, PL3) of sub-center land portions (Y1, Y2) and shoulder land portions (Z1, Z2) defined outward of center main grooves (14a, 14b) in the tire width direction protrude outward in the tire radial direction further than the standard profile line (PL0). The shoulder land portions (Z1, Z2) are defined further outward than the sub-center land portions (Y1, Y2). Further, the profile lines (PL2, PL3) of the sub-center land portions (Y1, Y2) and the shoulder land portions (Z1, Z2) each include an outermost point (A2, A4) of the corresponding center main groove (14a, 14b) in the tire width direction and both end points (A5, A6, A7, A8) of the corresponding shoulder main groove (14c, 14d) in the tire width direction.

A pneumatic tire includes, on a tread surface, a plurality of circumferential main grooves extending in the tread circumferential direction, and a plurality of land portions each defined between circumferential main grooves adjacent in the tread width direction among the plurality of circumferential main grooves, or by a circumferential main groove and a tread edge. A widthwise groove (widthwise sipe) (circumferential sipe) includes a widened portion, on the groove bottom side (sipe bottom side), at which the groove width (sipe width) is larger than on the tread surface side.

The storage modulus of tread rubber located in a tire radial direction region including at least a reference depth position is larger than a storage modulus of tread rubber located in regions inward and outward in the tire radial direction from the tire radial direction region.

A rib-like land section partitioned by main grooves, a plurality of sub-grooves provided in the rib-like land section at intervals in the tire circumferential direction and a groove hole provided between the sub-grooves adjacent to each other and extending in the tire circumferential direction are provided in a tread section. The sub-groove includes a lateral groove portion, in which one end opens to the main groove and the other end terminates inside the rib-like land section, and a longitudinal groove portion extending from the other end of the lateral groove portion to one side in the tire circumferential direction and terminating inside the rib-like land section. The groove hole is formed so that a groove depth at one end part close to a terminal end of the longitudinal groove portion becomes shallower than a groove depth at the other end part far from the terminal end.

A tire includes a tread portion being divided into four land portions by one circumferentially extending crown main groove and two circumferentially extending shoulder main grooves arranged one on each side of the crown main groove. The four land portions include two crown land portions disposed one on each side of the crown main groove. Each of the crown land portions is provided with first crown lateral grooves each extending from the crown main groove and terminating within the crown land portion and second crown lateral grooves each extending from the adjacent shoulder main groove and terminating within the crown land portion. In each of the crown land portion, the first crown lateral grooves and the second crown lateral grooves extend at least to an axial center location of the crown land portions.

A tire includes a tread portion including first and second tread edges, circumferential grooves, and land portions. The land portions include a crown land portion, a first middle land portion, and a second middle land portion. Under a 50% loaded condition, the first middle land portion, the crown land portion, and the second middle land portion respectively have axial widths W1m, Wc, and W2m of ground contact surfaces, the widths satisfying the following formula, W1m>Wc>W2m. The crown land portion includes an outer ground contact surface and an inner ground contact surface. The outer ground contact surface and the inner ground contact surface respectively have widths Wco and Wci in the tire axial direction, the widths satisfying the following formula, Wco>Wci.

A tire 1 comprises a tread portion 2 whose position when mounted on a vehicle is specified. The tread portion 2 comprises an outer tread edge (To), an inner tread edge (Ti), a plurality of main grooves 10, and a plurality of land regions 15. The main grooves 10 include a first main groove 11 whose groove edges are both positioned on an inner-tread-edge-(Ti) side of a tire equator (C), a second main groove 12 arranged on an inner-tread-edge-(Ti) side of the first main groove 11, and a third main groove 13 arranged between the tire equator (C) and the outer tread edge (To) and having a groove width smaller than the first and second main grooves 11 and 12. The land regions 15 include an inner middle land region 16 and an outer middle land region 17 having an axial width larger than the inner middle land region 16.

A tire includes a tread portion including an outboard tread edge, an inboard tread edge, four circumferential grooves between the outboard and inboard tread edges, five land portions divided by the four circumferential grooves, and lateral grooves extending from the inboard tread edge to the crown land portion and terminating within the crown land portion. The four circumferential grooves include an inboard shoulder circumferential groove, an inboard crown circumferential groove, and an outboard crown circumferential groove. The five land portions include an inboard shoulder land portion, an inboard middle land portion, and a crown land portion between the inboard and outboard crown circumferential grooves. The crown land portion is provided with at least one crown sipe extending from the inboard crown circumferential groove or the outboard crown circumferential groove and terminating within the crown land portion, and crosses the axially center position of the crown land portion.