To enhance the traveling stability, the side slip prevention property, the staggering of a vehicle, the noise and the fuel economy by fitting a tire wheel rim for an automobile to which two tires can be fitted to avoid the danger of flat tire to the two tires having different structure, flexibility or rubber hardness fitted to the tire wheel rim.

The tire wheel rim 5 for the automobile has a rim structure in which two tires can be fitted to one tire wheel rim, and a hole for fitting an air filling plug 30 is formed in each tire. The tire equipped to the tire wheel rim for the automobile has a shape in which the two tires can be positioned in the circumferential direction, and a gap part 25 of mating surfaces of two tires, i.e., an inner tire 21 and an outer tire 28 becomes minimum.