PNEUMATIC TIRE FOR PASSENGER CARS

摘要

A pneumatic tire for passenger cars, wherein a plurality of grooves are provided in a tread surface (1), by which grooves land portions are formed, sipings at least one end of each of which is opened in the relative groove being provided in each land portion. In at least one wall (2a) of each groove, at least one-stage stepped portion (10) is provided, and a plurality of sipings (7) are formed in this stepped portion (10) with a pitch higher than that of the sipings (5) provided in the land portion.