| 摘要 |
PROBLEM TO BE SOLVED: To achieve stability on both of a dry road surface and wet road surface.SOLUTION: Provided is a pneumatic tire having a tread pattern formed on a tread part. The tread part comprises: a first peripheral groove 31 extending in a tire peripheral direction and disposed in an annular state over tire whole periphery; a second peripheral groove 32 disposed on outside of the first peripheral groove in a tire width direction, and disposed in an annular state over the tire whole periphery; a first lug groove group in which plural first lug grooves 33 extending from the second peripheral groove to the first peripheral groove in an inclined state to the tire width direction, are provided in the tire peripheral direction; and a second lug groove group in which plural second lug grooves 34 positioned between the first and second peripheral grooves, having both ends at positions separated from the first and second peripheral grooves and the first lug grooves, and crossing at least two first lug grooves, are provided in the tire peripheral direction. A connection part between a tread and a side wall of each second lug groove has first chamfer surfaces 34a, 34b. |
