| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic radial tire capable of enhancing the steering stability of a vehicle and suppressing partial wear even if the radius of curvature of a tread in the vehicle width direction is small. SOLUTION: The pneumatic radial tire comprises an outer land 11 which is formed on the vehicle fitting outer side along the tire center line CL with its negative ratio set to 30-34%, and an inner land 12 which is formed on the vehicle fitting inner side along the tire center line CL with its negative ratio set to 22-26%. The carcass center line overlaps the tire center line CL on a carcass layer 7. A length from the carcass center line to an outer bead core 2a along the carcass layer 7 is defined as an outer carcass periphery length Ca1, and a length from the carcass center line to an inner bead core 3a along the carcass layer 7 is defined as an inner carcass periphery length Ca2. The outer carcass periphery length Ca1 is set to be longer than the inner carcass periphery length Ca2 by 2-5 mm. COPYRIGHT: (C)2009,JPO&INPIT |
