Patent ID: 7025102

Claim:
A pneumatic tire comprising: a tread portion, a pair of bead portions adapted to a wheel rim, a pair of sidewall portions therebetween, at least one of the sidewall portions being provided with an axially protruding rim protector, wherein the rim protector extends continuously in the tire circumferential direction so as to form an annular axially outer surface extending continuously in the tire circumferential direction; a radially inner surface extending radially inwardly from said annular axially outer surface towards the adjacent bead portion, wherein the radially inner surface is provided along the tire circumferential direction with at least one recess having a depth of from 0.5 to 7.0 mm, and wherein said radially inner surface comprises a radially outer part, a middle part and a radially inner part, the middle part has a radius R 1 of curvature in the range of from 1.5 to 4 times a radius Rf of curvature of a convex surface of the flange, the radially outer part has a radius R 2 of curvature smaller than the radius R 1 , and the radially inner part has a radius R 3 of curvature smaller than the radius R 1 .