Pneumatic radial tire for passenger vehicle

A pneumatic radial tire for passenger vehicles, comprising

• a pair of bead portions;
• a carcass consisting of one or more carcass plies made of rubber-coated carcass cords;
• and
• a belt consisting of only one inclined belt layer consisting of a belt ply made of rubber-coated belt cords that extend at an angle to a tire circumferential direction, arranged on an outer side in a tire radial direction of a crown portion of the carcass, wherein
• a cross-sectional width SW of the tire is less than 165 (mm),
• a ratio of the cross-sectional width SW of the tire to an outer diameter OD of the tire is 0.26 or less, or the cross-sectional width SW (mm) of the tire and the outer diameter OD (mm) of the tire satisfy a relational expression:
• OD (mm)≥−0.0187×SW (mm)2+9.15×SW (mm)−380 (mm),
• the carcass has a first tire widthwise portion in which the carcass cords are in a radial arrangement, and a second tire widthwise portion in which the carcass cords extend at an angle to the tire circumferential direction,
• the carcass has a carcass body portion that extends from the bead portion to an inner side in the tire radial direction of the belt,
• the second tire widthwise portion is located in a tire width-direction half which is on an outer side when the tire is mounted on a vehicle, and
• the carcass cords of the carcass body portion in the second tire widthwise portion and the belt cords extend in a direction that intersects each other when viewed from the outer side in the tire radial direction.