PNEUMATIC RADIAL TIRE FOR PASSENGER VEHICLE

The pneumatic radial tire for passenger vehicles according to the present disclosure comprises a carcass consisting of plies of radially arranged cords, spanning toroidally between a pair of bead portions; the cross-sectional width SW and the outer diameter OD of the tire satisfy a given relationship; the tire has a tread portion with tread rubber; the rubber gauge of the tread rubber is 2 mm or more and less than 5 mm; and the negative ratio of the tread surface of the tread portion is 20% or less.