| 摘要 |
PURPOSE:To provide a pneumatic radial tire which can reduce the steering operation force without providing a power steering mechanism by reducing the rest swaying force. CONSTITUTION:On the tread surface 11 of a pneumatic radial tire 10, three lines of circumferential grooves 12 extending in the circumferential direction of tire are formed, and plural inclining lateral grooves 14 inclining to the equatorial surface 16 of the tire are crossed to the circumferential grooves 12. On the tread surface 11, plural blocks 18 are partitioned by the circumferential grooves 12 and the inclining lateral grooves 14, and sipings 20 to corss the blocks 18 inclining in the reverse direction to the tire equatorial surface 16 are formed to the blocks 18. |
