| 摘要 |
PROBLEM TO BE SOLVED: To improve on-snow performance.SOLUTION: Center land parts 4C are provided between a center peripheral main groove 3C disposed on a tire equator Co side, and side peripheral main grooves 3E adjacent on both sides of the center peripheral main groove. The center peripheral main groove 3C is formed of a zigzag groove in which first groove parts 5 having a first groove wall 5S extending with an angle α equal to or less than 5° to a tire axial direction, and second groove parts 6 having a second groove wall 6S extending with an angle β equal to or more than 60° to the tire axial direction, are repeated. Length L1 of the first groove wall 5S in the tire axial direction is 2-10% of tread width TW. The center land parts 4C comprise center inclination lateral grooves 8 extending from the tire axial direction end of the first groove part 5 to the side peripheral main groove 3E.SELECTED DRAWING: Figure 2 |
