PNEUMATIC TIRE

Provided is a pneumatic tire. A carcass line when 10% of a regular internal pressure is applied is composed of a curved line (S) connecting arcs having different radii of curvature and curved to project outward in a tire width direction and a curved line (T) curved to project inward in the tire width direction. A radius of curvature (R) at a point on the curved line (S) and a radius of curvature (R) at an adjacent point satisfy |R−R|/|(R+R)/2|≤0.25. An inclination (θ) and an inclination (θ) at a connection point (Q) of the curved line (S) and the curved line (T) satisfy |θ−θ|8°. A ratio (Hβ/Hα) between a radial height (Hα) at a maximum outer diameter position of a carcass layer and a radial height (Hβ) at a tire maximum width position satisfies Hβ/Hα ≥0.58.