| 摘要 |
PROBLEM TO BE SOLVED: To improve wet performance and noise performance. SOLUTION: A pneumatic tire has at least one longitudinal groove 3 recessed for extension in a tire circumference direction in a tread surface 2. At least either groove wall surface 6 of the longitudinal groove 3 includes a chamfered slant wall portion 8 slanting in a direction to increase a groove width toward the tread surface 2, in an outer portion about a tire radius direction. In the slant wall portion 8, fine grooves 9 of a width of 0.3 to 1.2 mm and a depth of 0.3 to 1.5 mm are spaced at pitches of 1.4 to 3.0 mm in the tire circumference direction. |
