PNEUMATIC TIRE

摘要

A method of increasing the tread life of a radial belted pneumatic tire in which the tire is cured in a mold with the central portion of the tread in a reversely curved configuration. The depth of the reversely curved portion, during curing in the mold, is maintained within predetermined limits, and this reverse curvature in the tread is removable from the completely manufactured tire by inflation of the tire to design pressure.