A pneumatic vehicle tire has a nominal tire cross-sectional height H of at most 110 mm, bead regions with bead cores, a radial carcass which runs around the bead cores in the bead regions axially on the inside to axially on the outside forming carcass turn-ups, and side wall regions, which each have a wing profile and a side wall profile. The wing profiles are the only rubber components extending in contact with the radial carcass in the radially outer region of the side wall region. The carcass turn-ups end at a radial height (h.sub.1), determined from a base line, of 15 mm to 65 mm. At least in a region between a radial height (h.sub.2) of 29% of the nominal side wall height and a radial height (h.sub.3) of at least 80% of the height H, the wing profiles are the only rubber components that extend outside the radial carcass.

A tire has a carcass, four belt plies, a tread rubber, a plurality of main grooves and a rib. The plurality of main grooves and the rib being formed on a surface of the tread rubber. The cords of second and third belt plies of the four belt plies from the carcass toward the outer periphery are inclined in an opposite direction to each other relative to a tire axis, and are intersected with each other. An angle of incline of the cords of the second and third belt plies relative to the tire peripheral direction is smaller at an belt end than that at a tire equator. The angle of incline in a groove area overlapping the main grooves in plan view is greater than an angle of incline in rib areas at both sides of the groove area.

This disclosure aims to achieve reduction in rolling resistance and ensure excellent steering stability. In this disclosure, a tire widthwise maximum width of a carcass is 1.35 W or less; a tire outer surface has a recess; within a second height range h2 and on the outer side in a tire radial direction with respect to bead cores, a radius of curvature of the carcass is 0.46 h or more; within a third height range h3, the radius of curvature of the carcass is 0.62 h or more; during movement of a virtual point from a bead core height position Hbc toward a third height position H3, a tire gauge at the virtual point is reduced by a reduction amount of 0.025G0/mm or less; and the tire gauge at the virtual point at the third height position H3 is 10% or more of the tire widthwise maximum width of the bead core.

A pneumatic tire comprises a carcass layer, a belt layer disposed on an outer side of the carcass layer in a tire radial direction, and a tread rubber disposed on the outer side of the belt layer in the tire radial direction. The belt layer formed by laminating an angle belt having a belt angle 45 and 70 in absolute values, a pair of cross belts, having belt angles of 10 and 45 in absolute values and having belt angles of mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of 5 with respect to a tire circumferential direction. A tread width TW and a cross-sectional width Wca of the carcass layer have a relationship such that 0.82TW/Wca0.92. A width Ws of the circumferential reinforcing layer and a cross-sectional width Wca of the carcass layer such that 0.60Ws/Wca0.70.

A pneumatic tire 1 includes: a tread 2; sidewalls 3; a carcass 5; and a belt 6. A distribution of a thickness Tg(y) of the tread in a region extending in an axially outward direction of the tire, is represented by equation Tg(y)=AaCt(y). A represents a thickness of the tread at a crown center 17. Ct(y) represents a distribution of a displacement of the tread surface in a radially inward direction of the tire , in a region from the crown center to an end portion of the belt. a represents a coefficient selected from a range of values that are greater than or equal to 0.10, and are not greater than 0.35. A displacement Cc(y) of the carcass 5 in the radially inward direction of the tire, in a region extending in the axially outward direction of the tire from the crown center, is represented by equation Cc(y)=(1a)Ct(y).

A contour CL of a carcass 12 includes a curved portion 44 and an inversely curved portion 46. A boundary between the curved portion 44 and the inversely curved portion 46 is an inflection point PV. A part or an entirety of the curved portion 44 is represented by a first arc. A part or an entirety of the inversely curved portion 46 is represented by a second arc. The first arc and the second arc are tangent to each other at the inflection point PV. A ratio (X/W) of a distance X in an axial direction to a distance W in the axial direction is not less than 70% and not greater than 85%. A ratio (Y/H) of a distance Y in a radial direction to a distance H in the radial direction is not less than 15% and not greater than 22%.

When a pneumatic tire is in a reference state of being fitted with a rim that is one inch larger than a regular rim in width, of holding 15 kPa internal pressure, and of being under no load, then a tread thickness distribution curve represented by f(y)=1t(y)/t(0) is 0.01 to 0.03 when y=0.3; 0.03 to 0.06 when y=0.4; and 0.06 to 0.10 when y=0.5, where y denotes a ratio of a distance in an axial direction from an equator surface relative to a distance L in the axial direction between the equator surface and a maximum width position of a carcass, and t(y) denotes a tread thickness corresponding to a distance in a radial direction between an outer surface of the carcass and an outer surface of a tread at an axial direction position corresponding to y.

The pneumatic tire has a carcass ply and a tread part. The carcass ply includes a main body ply reaching from a tread part to a bead core, and a folded ply folded around the bead core. An end part of the folded ply extends to a height position beyond a tire maximum width position. A bead filler height is within the range of 20-60% of the tire sectional height. A bead filler width at a height position corresponding to 30% of the tire sectional height is no greater than 40% of the bead filler root width. A tread width is at least 81% of a tire maximum width, and a curvature radius of the carcass ply at an extension line extending in a tread width direction and passing the tire maximum width position in a cross section in the direction of tire width is at least 30 mm.

A pneumatic tire comprises a carcass layer, a belt layer radially outward of the carcass layer, and a tread rubber radially outward of the belt layer. A belt cord angle of a belt layer large angle belt is 45-70, opposite sign belt cord angles of cross belts are 10-45, and a reinforcing layer belt cord angle is within 5 of a circumferential direction. A reinforcing layer width Ws and a carcass cross-sectional width Wca satisfy 0.60Ws/Wca0.70. The reinforcing layer is radially outward of the cross belts which are radially outward of the large angle belt. A wider cross belt width Wb2 of the pair and Wca satisfy 0.79Wb2/Wca0.89. Wb2 and Wca satisfy 0.79Wb2/Wca0.89. Relationships 0.79Wb2/Wca0.84 and either 0.82TW/Wca0.92 or 0.79TW/SW0.89 are satisfied, where TW is a tread width and SW is a total tire width.

A pneumatic tire comprises a carcass layer, a belt layer radially outward of the carcass layer, and a tread rubber radially outward of the belt layer. The belt layer is formed by laminating a large angle belt having a belt-cord angle of 45-70, a pair of cross belts having belt cord angles of 10-45 with opposite sign belt cord angles, and a reinforcing layer having a belt cord angle satisfying 5 relative to a circumferential direction. A reinforcing layer width Ws and a carcass cross-sectional width Wca satisfy 0.60Ws/Wca0.70. A wider cross belt width Wb2 of the pair of cross belts and the carcass width Wca satisfy 0.79Wb2/Wca0.89. Relationships 0.79Wb2/Wca0.84 and either 0.82TW/Wca0.92 or 0.79TW/SW0.89 are satisfied, where TW is a tread width and SW is a total tire width.