Patent ID: 7673663

Claim:
A pneumatic tire comprising a tread portion provided with a nonlinear rib having an amplitude having a center in the tire axial direction, wherein in a normally loaded condition of the tire, the tread portion has an outside tread edge Eo and an inside tread edge Ei when the camber angle of the tire is 0 degrees, in said normally loaded condition, when a camber angle of 4 degrees is given to the tire to incline towards the outside tread edge Eo, a foot print shape of the tire has a maximum circumferential length at an axial position MC which is off the tire equator towards the outside tread edge Eo, said nonlinear rib is positioned off the tire equator towards the outside tread edge Eo such that said axial position MC lies within the amplitude of the nonlinear rib, and one of the edges of the nonlinear rib on the outside tread edge side is chamfered, wherein the tread portion is further provided with an outside nonlinear circumferential groove disposed on the outside tread edge side of said nonlinear rib adjacent to the nonlinear rib, outside main lateral grooves extending from the outside nonlinear circumferential groove to the outside tread edge Eo, wherein edges of each said outside main lateral grooves are chamfered, at least in the vicinity of the outside tread edge Eo, and outside secondary lateral grooves disposed between the outside main lateral grooves and extending from said outside nonlinear circumferential groove towards the outside tread edge Eo but terminates before the outside tread edge Eo, wherein the outside secondary lateral grooves are provided therein with tie-bars.