Tire

A tire-rim assembly, comprising a tire mounted on a specified rim, the tire having a cross-sectional height SH ranging from 50 mm to 150 mm,

• in an unloaded state where the tire is mounted on a specified rim and inflated to a specified internal pressure,
• an opening distance between the tire and a rim flange on a perpendicular line drawn from an outermost point of the rim flange in a radial direction to an outer surface of the tire being defined as A, and the opening distance A with respect to the cross-sectional height SH satisfying a relationship 0.01≤A/SH≤0.16, and
• a point at which a horizontal line in a tire width direction passing through the outermost point of the rim flange in the radial direction intersects with the outer surface of the tire being defined as P, a point specifying a rim width and a rim diameter of the specified rim being defined as Q, and an angle α formed by a straight line connecting the points P and Q and a horizontal line in the tire width direction being in a range 50°≤α≤80°;
• wherein the tire further comprises:
• a carcass layer including a body portion extending between a pair of bead portions and a turned up portion being turned up around each of the bead portions from a tire inner side to a tire outer side, the turned up portion extending radially outward of a tire maximum width position and overlapping a belt layer embedded in a tread portion in a tire width direction, the bead portions each including a bead core and a bead filler, the bead filler extending further radially outward than the outermost point of the rim flange in the radial direction;
• and
• an innerliner layer disposed on a tire inner cavity side of the body portion of the carcass layer, the innerliner layer contacting the carcass layer at a tire maximum width position;
• wherein
• in an unloaded state where the tire is mounted on the specified rim and inflated to the specified internal pressure, an opening start point at which the rim flange separates from the tire is defined as S, the outermost point of the rim flange in the radial direction is defined as Tr, a point at which a perpendicular line drawn from the point Tr to the outer surface of the tire intersects with the outer surface of the tire is defined as T, a point at which a perpendicular line drawn from the point P to the outer surface of the tire intersects with the outer surface of the rim flange is defined as Pr, and a radius of curvature Rb of an arc of the tire passing through the points S, P, and T with respect to a radius of curvature Rr of an arc of the rim flange passing through the points S, Pr, and Tr satisfies a relationship 1.2≤Rb/Rr≤14.5.

A tire-rim assembly, comprising a tire mounted on a specified rim, the tire having a cross-sectional height SH ranging from 50 mm to 150 mm,

• in an unloaded state where the tire is mounted on a specified rim and inflated to a specified internal pressure,
• an opening distance between the tire and a rim flange on a perpendicular line drawn from an outermost point of the rim flange in a radial direction to an outer surface of the tire being defined as A, and the opening distance A with respect to the cross-sectional height SH satisfying a relationship 0.01≤A/SH≤0.16, and
• a point at which a horizontal line in a tire width direction passing through the outermost point of the rim flange in the radial direction intersects with the outer surface of the tire being defined as P, a point specifying a rim width and a rim diameter of the specified rim being defined as Q, and an angle α formed by a straight line connecting the points P and Q and a horizontal line in the tire width direction being in a range 50°≤α≤80°;
• wherein the tire further comprises:
• a carcass layer including a body portion extending between a pair of bead portions and a turned up portion being turned up around each of the bead portions from a tire inner side to a tire outer side, the turned up portion extending radially outward of a tire maximum width position and overlapping a belt layer embedded in a tread portion in a tire width direction, the bead portions each including a bead core and a bead filler, the bead filler extending further radially outward than the outermost point of the rim flange in the radial direction;
• and
• an innerliner layer disposed on a tire inner cavity side of the body portion of the carcass layer, the innerliner layer contacting the carcass layer at a tire maximum width position;
• wherein
• the belt layer comprises a plurality of belt layers embedded in the tread portion, wherein in an unloaded state where the tire is mounted on the specified rim and inflated to the specified internal pressure, a point at which a horizontal line in the tire width direction passing through an edge portion of a belt layer on an innermost side in a tire radial direction of the plurality of belt layers intersects with the outer surface of the tire is defined as V, a point specifying a total width of the tire is defined as L, and an angle γ formed by a straight line connecting the points L and V and a horizontal line in the tire width direction is in a range 45°≤γ≤80°, and
• in an unloaded state where the tire is mounted on the specified rim and inflated to the specified internal pressure, a point located at a center position between the points L and V in the tire radial direction and on the outer surface of the tire is defined as W, and a radius of curvature Rs of an arc of the tire passing through the points V, W, and L with respect to the cross-sectional height SH satisfies a relationship 0.3≤Rs/SH≤2.5.