| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pneumatic radial tire improving steering stability while keeping other tire characteristics such as high-speed durability, riding comfortability and sound vibration characteristics. <P>SOLUTION: In the pneumatic radial tire T provided with a belt 6 comprising at least two cord crossing layers formed on the outer periphery of a crown 3 of a radial carcass 5, and belt enforcing layers 7, 8 formed of organic fiber cords wound around the outer periphery of the belt 6, the belt reinforcing layers 7, 8 are separated to a center and both ends in the tire width direction, a nylon cord is used as the reinforcing cord of the belt reinforcing layer 7 in the center, and polyester (PET) cords are used as the reinforcing cords of the belt reinforcing layers 8 at both at end parts. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
