| 摘要 |
<p>PROBLEM TO BE SOLVED: To have superior draining performance and traction performance and reduce a crack in a tread in a tread-pattern pneumatic tire having a zigzag main groove extending in the tire circumferential direction. SOLUTION: This pneumatic tire is characterized in that the tire tread surface is provided with the zigzag main groove extending in the tire circumferential direction, a zigzag angleαin an internal corner part of the main groove is 60-120 deg., and a tapered part with a ridge line length of 3 mm-8 mm is formed in the internal a corner part. It is preferable that both of two tapered anglesβ1 andβ2 formed by the tapered part and the ridge lines of the both-side main grooves are 120 deg. or more. The tapered part is formed flush with the tread surface.</p> |
