RADIAL TIRE

摘要

PURPOSE: A radial tire is provided to improve the durability and grounding shape of a tire belt by reducing whole end part transformed value and the difference of whole end part transformed values in case of pneumatic and loading. CONSTITUTION: In a radial tire, a radius of curvature by a carcass(1) and a belt layer(2) in a crown center region(O) is formed so that a radius of curvature of a tread part(3) is opposite to a center position of the radius of curvature of the tread part, the width of th belt layer is within 50 to 70 % range of SW(Section Width) of a tire, and the radius of curvature of the tread part is within 300 to 600 % range of the SW.