Patent ID: 6640857
Filing Date: 2003-11-04
Classification: B60C,Y10S,Y10T

Abstract:
A heavy-duty Pneumatic radial tire comprisinga tread portion with an outside tread edge and an inside tread edge, an outside sidewall portion extending radially inwardly from the outside tread edge, an inside sidewall portion extending radially inwardly from the inside tread edge, an outside bead portion with an inner diameter Do at the radially inner end of the outside sidewall portion, an inside bead portion with an inner diameter Di at the radially inner end of the inside sidewall portion, wherein the diameter Do is substantially between 80 mm and 200 mm larder than the diameter Di, and said tread portion is provided with an outside tread surface defined between the tread center and the outside tread edge and an inside tread surface defined between the tread center and the inside tread edge, wherein a radius of curvature of the outside tread surface is between 50 mm and 100 mm larger than a radius of curvature of the inside tread surface.