| 摘要 |
A pneumatic tire is provided with a tread pattern including a wider circumferential straight groove (1) dividing the tread into right and left sides and having a groove width which is 7-25% of the width of the tread, a pair of circumferential ribs (2) provided adjacent to right and left sides of the wider circumferential straight groove (1), respectively and each having a groove width which is 2.5-15% of the width of the tread, and a pair of narrower circumferential straight grooves (3) provided adjacent to and axially outside the circumferential ribs (2), respectively, and each having a groove width being 0.5 to 5% of that of the tread and a groove depth being 50 to 100% of that of the wider circumferential straight groove (1), and wherein each of the circumferential ribs (2) is provided with a plurality of sipes (4) extending obliquely relative to the circumferential direction while being spaced in the circumferential direction, the depth of each of the sipes (4) being 25 to 100% of the groove depth of the wider circumferential straight groove (1). <IMAGE> |
