Pneumatic Tire

A pneumatic tire comprising 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, wherein

• the belt layer is formed by laminating a large angle belt having a belt angle of not less than 45° and not more than 70° in absolute values, a pair of cross belts having belt angles of not less than 10° and not more than 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,
• the pair of cross belts are disposed on the outer side in the tire radial direction of the large angle belt,
• the circumferential reinforcing layer is disposed on the inner side in the tire radial direction of the pair of cross belts,
• a width Ws of the circumferential reinforcing layer and a cross-sectional width Wca of the carcass layer have a relationship such that 0.60≤Ws/Wca≤0.70;
• and
• a width Wb2 of a wider cross belt of the pair of cross belts, and the cross-sectional width Wca of the carcass layer have a relationship such that 0.79≤Wb2/Wca≤0.89.