A tire includes a pair of beads; a carcass that is extended on and between the beads on both sides; and a pair of strips that extend almost outward from the beads along the carcass in the radial direction. The beads include cores, first apexes, and second apexes. The carcass includes a carcass ply, and the carcass ply includes a main portion and turned-up portions. The turned-up portions are disposed between the first apexes and the second apexes. The turned-up portions contact with the main portion in portions radially outward of outer ends of the first apexes. A position of an outer end of each strip is equal, in the radial direction, to a position Pb at which the maximum width is obtained, or the outer end of each strip is disposed radially inward of the position Pb at which the maximum width is obtained.

The bead portion of the pneumatic tire includes a bead structure having a bead core composed of a bead cord, and an annular plate which extends to the tire circumferential direction and is formed of a resin material. The annular plate has a planar first annular ring portion extending to the tire circumferential direction and a second annular ring portion positioned outside the tire radial direction of the first annular portion and extending to the tire circumferential direction, the first annular portion is provided along the bead structure, and the second annular portion is further inclined to the outside in tire width direction of the first annular portion.

When (I) a tyre 1 is in contact with a flat surface (S) with a camber angle of 40 degrees, (II) a load (F) applied to the tyre is increased from zero, and (III) a curve (T) is obtained by plotting, in a XY coordinate, a displacement (x) in a tyre axial direction and a displacement (y) in a tyre radial direction of a position (A) of one of tyre tread edges (Te) closer to the flat surface (S), the displacements being from a reference position (A0) when the load (F) is zero, inclination of the curve (T) increases as the load (F) increases at least in a range where the load (F) is not more than 78% of a maximum load capacity load of the tyre.

A run-flat radial tire is provided that has a tire cross-section height of 115 mm or greater includes a carcass spanning between a pair of bead portions, a side reinforcing rubber layer that is provided to a tire side portion and that extends in a tire radial direction along an inner face of the carcass, and at least one inclined belt layer that is provided at a tire radial direction outside of the carcass and includes cord extending in a direction inclined with respect to a tire circumferential direction. At least at one end portion side in the tire axial direction of a maximum width inclined belt layer having the largest width in the tire axial direction, the maximum width inclined belt layer and the side reinforcing rubber layer have an overlap width in the tire axial direction of 22.5% or greater of the tire cross-section height.

A run-flat radial tire is provided that has a tire cross-section height of 115 mm or greater includes a carcass spanning between a pair of bead portions, a side reinforcing rubber layer that is provided to a tire side portion and that extends in a tire radial direction along an inner face of the carcass, and at least one inclined belt layer that is provided at a tire radial direction outside of the carcass and includes cord extending in a direction inclined with respect to a tire circumferential direction. At least at one end portion side in the tire axial direction of a maximum width inclined belt layer having the largest width in the tire axial direction, the maximum width inclined belt layer and the side reinforcing rubber layer have an overlap width in the tire axial direction of 22.5% or greater of the tire cross-section height.

The present invention relates to a pneumatic tire comprising: a tread; one pair of shoulders respectively continued to both sides of the tread with the tread part as a center; one pair of sidewalls respectively continued to the shoulders; one pair of beads respectively continued to the sidewalls; a body ply formed on the inner sides of the tread, shoulders, sidewalls and beads; a belt and a cap ply part sequentially stacked between the inner side of the tread and the body ply; and an inner liner bonded to the inner side of the body ply, wherein in the inner liner, a sheet including a rubber component is positioned at the part of the body ply corresponding to the shoulders and the sidewalls, and a polymer film including a polyamide-based component is positioned at the part of the body ply corresponding to the tread.

The present invention relates to a pneumatic tire comprising: a tread; one pair of shoulders respectively continued to both sides of the tread with the tread part as a center; one pair of sidewalls respectively continued to the shoulders; one pair of beads respectively continued to the sidewalls; a body ply formed on the inner sides of the tread, shoulders, sidewalls and beads; a belt and a cap ply part sequentially stacked between the inner side of the tread and the body ply; and an inner liner bonded to the inner side of the body ply, wherein in the inner liner, a sheet including a rubber component is positioned at the part of the body ply corresponding to the shoulders and the sidewalls, and a polymer film including a polyamide-based component is positioned at the part of the body ply corresponding to the tread.

[Object] A motorcycle tire, for an uneven terrain, which exhibits both impact absorption and handling stability is provided. [Solution] A tire 2 includes a pair of rubber reinforcing layers 14 disposed inward of a carcass 10 near ends, respectively, of a tread surface 16. A profile of the tread surface 16 is formed by: an arc C1 that is disposed at a center, and that projects outward in a radial direction; and a pair of arcs C2 each of which is disposed outward of the arc C1 in an axial direction and each of which projects outward in the radial direction. The arc C1 contacts with the arcs C2. A radius R1 of curvature of the arc C1 is less than a radius R2 of curvature of each arc C2. Outer ends 40 of the rubber reinforcing layers 14 are disposed outward of ends TE of the tread surface 16 in the radial direction. Inner ends 42 of the rubber reinforcing layers 14 are disposed inward of the ends TE of the tread surface 16 in the radial direction. The rubber reinforcing layers 14 are not disposed on an equator plane.

[Object] A motorcycle tire, for an uneven terrain, which exhibits both impact absorption and handling stability is provided. [Solution] A tire 2 includes a pair of rubber reinforcing layers 14 disposed inward of a carcass 10 near ends, respectively, of a tread surface 16. A profile of the tread surface 16 is formed by: an arc C1 that is disposed at a center, and that projects outward in a radial direction; and a pair of arcs C2 each of which is disposed outward of the arc C1 in an axial direction and each of which projects outward in the radial direction. The arc C1 contacts with the arcs C2. A radius R1 of curvature of the arc C1 is less than a radius R2 of curvature of each arc C2. Outer ends 40 of the rubber reinforcing layers 14 are disposed outward of ends TE of the tread surface 16 in the radial direction. Inner ends 42 of the rubber reinforcing layers 14 are disposed inward of the ends TE of the tread surface 16 in the radial direction. The rubber reinforcing layers 14 are not disposed on an equator plane.

A tire includes a tread portion; a pair of bead portions; a pair of sidewall portions, each of which extend between the tread portion and a respective bead portion; a carcass that extends from one bead portion to the other, through the sidewall portions and tread portion; and an inner surface that defines a tire cavity; wherein the tread portion comprises a belt disposed outside of the carcass in a radial direction of the tire, the belt comprising one or more belt plies that extend in an axial direction of the tire; wherein each sidewall portion comprises an intermediate layer arranged inward in the tire radial direction from the carcass, wherein each intermediate layer comprises an outer edge that overlaps the belt and an inner edge arranged in the sidewall portion or bead portion; wherein the tire further comprises an inner layer arranged inward in the tire radial direction from the tread portion, the inner layer having a thickness in the radial direction defined by the carcass and inner surface; and wherein the thickness of the inner layer is greater than a thickness between the carcass and inner surface in the sidewall portions.