Pneumatic tired wheel

In a pneumatic tired wheel including a tubeless tire having a relatively thick tread portion, a pair of side portions extending from said tread portion, a pair of bead portions extending from said side portions, a carcass embedded in said side portions across said bead portions, said bead portions being stiffened with at least one additional reinforcing layer disposed therein, an elastic bead stopper having an independent and air-tight chamber inscribed within said bead portions, a rim having a pair of flanges;

• the improvements comprising a pair of elastic reinforcements having a Shore A hardness of at least 47 and extending along said side portions and formed integral therewith, the thickness of said elastic reinforcements gradually decreasing toward their associated bead portions and toward the center of said tread portion, with the maximum thickness adjacent said side portions being from 3 to 15 percent of the maximum width of the tire when it is inflated, and each end portion of said elastic reinforcements overlapping said additional reinforcing layer in said bead portion and the thickened tread portion, thereby to supplement the thickness of said side portions and to enhance the inherent rigidity thereof so as to support a load even under a punctured condition, said bead stopper having a crown portion which is substantially flat in cross section and comprises at least one inextensible cord layer forming an angle of cords of not more than 20.degree. with respect to the circumferential direction, a pair of relatively thin and extensible side portions associated with the end portions of said crown portion comprised substantially of rubber material only and a pair of space members comprising a given volume of rubber having a Shore A hardness of at least 55 and arranged between each end of said cord layer in end portions of said crown portion and its associated side portion of the bead stopper, the outer diameter of said crown portion being larger than the outer diameter of said rim flanges but small enough to keep said crown portion within a defined space between said bead portions of the tire, thereby each of said bead portions is locked tightly in place between each side portion of said bead stopper and each of said rim flanges.