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.

A pneumatic tire includes: a first and second main grooves extending in a tire circumferential direction; first and second inclined grooves extending obliquely toward the same side with respect to the tire circumferential direction and connected to the first and second main grooves; and a block defined by the first and second main grooves and the first and second inclined grooves. The block includes a sub groove having a first portion and a second portion, the first portion being open to an intermediate portion of the first inclined groove and extending in the tire circumferential direction, the second portion being inclined to a side opposite to the first inclined groove, extending from a terminal end of the first portion in a direction away from the first inclined groove, and being open to the first main groove.

A tire includes a tread portion including first and second tread edges, a first shoulder land portion including the first tread edge, and a first shoulder circumferential groove located inwardly in a tire axial direction of and adjacent to the first shoulder land portion and extending continuously in a tire circumferential direction. The first shoulder land portion is provided with a plurality of first shoulder lateral grooves extending from the first shoulder circumferential groove across the first tread edge, each of the plurality of first shoulder lateral grooves has a pair of first groove walls, and the pair of first groove walls is provided with a pair of first chamfer portions that extends from the first shoulder circumferential groove to a first location beyond the first tread edge.

A tire has a tread portion comprising: a crown land zone provided with a crown auxiliary groove and crown lateral grooves; and a shoulder land zone provided with a shoulder auxiliary groove and shoulder lateral grooves. The axial width of the shoulder land zone is larger than the axial width of the crown land zone. The groove widths of the crown auxiliary groove and the shoulder auxiliary groove are smaller than that of a shoulder main groove. The lateral crown groove comprises a radially outer wide portion and a radially inner narrow sipe-like portion.

A pneumatic tire includes circumferential grooves aligned in a lateral direction and extending in a circumferential direction, lateral grooves aligned in the circumferential direction and extending to cross the circumferential direction, communicating at ends with the circumferential grooves and defining a block-shaped land portion between the circumferential grooves, two narrow grooves aligned in the lateral direction and extending in the circumferential direction, communicating at ends with a lateral groove and dividing the land portion defined by each of the circumferential grooves and each of the lateral grooves into small land portions, the narrow grooves having a smaller groove width than the circumferential grooves and being formed with a bent portion in an intermediate portion, the bent portion being disposed inward in the lateral direction, and bend points of the bent portions being disposed at positions offset from one another in the circumferential direction.

A run-flat tire includes a belt reinforcing layer outward of a belt layer in a tire radial direction and reinforcing rubber in sidewall portions. Where a center region is a region of a tread portion in which a center land portion corresponding to a land portion included in land portions in a tread portion and located closest to a tire equatorial plane is positioned, the belt reinforcing layer includes a center reinforcing portion in which more pieces of the belt reinforcing layer are layered at a position of the center region than at positions other than the position of the center region, and in the belt reinforcing layer, a width Wc of the center reinforcing portion in a tire lateral direction with respect to a thickness Gr of the side reinforcing rubber at a tire maximum width position is within a range of 0.5 Gr≤Wc≤2.0 Gr.

The tread pattern of the pneumatic tire includes an outer main groove, shoulder lug grooves, and vertical sipes. The outer main groove extends in the tire circumferential direction on an outer side of the tire centerline in the tire width direction. The shoulder lug grooves are spaced apart in the tire circumferential direction and provided in the shoulder land portion regions on an outer side of the outer main groove in the tire width direction, extend from the outer side in the tire width direction toward the outer main groove, are closed in a shoulder land portion region. Each of the vertical sipes has a narrower width than each of the shoulder lug grooves, crosses each of the shoulder lug grooves and extends in the tire circumferential direction. Each of the vertical sipes has a depth greater than a groove depth of each of the shoulder lug grooves.

A pneumatic tire includes two circumferential main grooves disposed in an inner half of a tread developed width in a tire lateral direction; shoulder lug grooves that divide shoulder land portions into shoulder block portions and that each include a see-through portion in the tire lateral direction; center lug grooves dividing a center land portion into a plurality of center block portions; and center sipes having both ends terminated in the center block portions. The center sipe includes at least two sipe portions having different angles via at least one bent portion. An angle θ.sub.1 of at least one sipe portion with respect to a tire equator line satisfies 0°≤θ.sub.1≤15°, and an angle θ.sub.2 of at least the other sipe portion with respect to the tire equator line satisfies 35°≤θ.sub.2≤60°.

The tire (10) for a passenger vehicle has an axially central portion and axially lateral portions. The axially central portion and each axially lateral portion satisfies just one of conditions I, II, III: I—the portion comprises no transverse cut (90, 90′), II—the portion comprises N transverse cuts (90, 90′) arranged in such a way that π×OD/N≥40 mm, III—the portion comprises N transverse cuts (90, 90′) arranged in such a way that π×OD/N≤24 mm, condition I or II being satisfied by the axially central portion or by an axially lateral portion, and condition III being satisfied by the axially central portion or by an axially lateral portion.

A pneumatic tire includes a tread surface, a plurality of circumferential main grooves formed on the tread surface and extending in a tire circumference direction, a plurality of lug grooves formed on the tread surface and extending in a tire lateral direction, a plurality of blocks defined by the lug grooves on both sides in the tire circumferential direction and by the circumferential main grooves on at least one end in the tire lateral direction, and narrow grooves formed in the blocks. The narrow grooves include a plurality of bent portions as well as a circumferential narrow groove extending in the tire circumference direction and a lateral narrow groove extending in the tire lateral direction. The lateral narrow groove and the circumferential narrow groove are configured so that at least one thereof is provided in a plurality and includes a plurality of intersection points where the one intersects the other.