| 摘要 |
PROBLEM TO BE SOLVED: To provide a radial tire for a vehicle increased in high-speed durability and riding comfort by reducing a ply steer and rolling resistance. SOLUTION: In this radial tire 1 for a vehicle, two belt layers 6, 7 formed by tilting belt cords 6a, 7a in the reverse directions to the tire circumferential direction are formed on a tread part 5 on the outside of a carcass layer 4. The tilt anglesθ<SB>1</SB>,θ<SB>2</SB>of the belt cords 6a, 7a of both belt layers 6, 7 to the tire circumferential direction are set to 45-65°, respectively. An organic fiber cord 8a is spirally wrapped around both belt layers 6, 7 in the tire circumferential direction to form a reinforcement layer 8. COPYRIGHT: (C)2009,JPO&INPIT
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