PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of enhancing water-absorbing effect on an ice road and improving traveling performance. Ž
SOLUTION: The pneumatic tire is provided with a plurality of longitudinal grooves 3 extending to the tire circumferential direction on a tread part. The pneumatic tire has land parts 5 between adjacent longitudinal grooves 3, 3 or between the longitudinal groove 3 and the tread end. The land part 5 is provided with a siping shape narrow groove 6 which extends to the direction crossing the land part 5, at least one end 6E is communicated to the longitudinal groove 3 or the tread end, and opens at the ground surface 7. The siping shape narrow groove 6 comprises a sipe part 6a having an incised shape groove width of 2.0 mm or less, and an expanded width part 6b which is continued to the inward radial direction of the sipe part 6a and has the groove width of more than 2.0 mm. The expanded width 6b is provided at the area Y where the maximum depth D of the siping shape narrow groove from the ground surface 7 is not less than 20% and not more than 90%. Ž
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