Pneumatic tires with sidewall recesses

A pneumatic tire comprising;

• a pair of beads, a carcass ply, said carcass ply having a main body located axially inside the beads and outer ply portions extending along the main body of the carcass ply and axially outside each of the beads, a number of circumferentially spaced recesses being provided in an outer surface of the tire between a radially outer end of each of the outer ply portions and a location corresponding to a maximum width of the tire, said recesses having a depth equal to 1/10 to 1/2 times as large as a thickness of those portions of the tire which are provided with the recesses, an inclined angle at a base portion of each of the beads being about 15.degree. relative of a rotary axis of the tire, wherein 0.4P.ltoreq.W.ltoreq.0.8P and B.ltoreq.0.06D in which P is a circumferential pitch of the recesses, B a minimum distance between the adjacent recesses, W a circumferential width of each of the recesses which is obtained by deducting the minimum distance B from the pitch P, and D a diameter of a portion of a tire located at a same radial level as that of a rim base of a normal rim when said tire is fitted and mounted to such a normal rim.