| 摘要 |
<p>Provided is a pneumatic motorcycle tire in which both economic efficiency and stability are attained. Provided is a pneumatic motorcycle tire which includes a tread portion 1, and side wall portions 2 and bead portions 3, and whose rotation direction when the tire is mounted on a vehicle is designated. A tire tread includes a branched main groove 10 composed of a first groove 11 extending inclined toward the designated tire rotation direction on one side in the tire width direction, a second groove 12 extending from an end portion of the first groove in the reverse rotation direction of the designated tire rotation direction inclined toward the designated tire rotation direction on the other end in the tire width direction, and a third groove 13 extending from an end portion of the first groove and second groove in the reverse rotation direction of the designated tire rotation direction toward the reverse rotation direction of the designated tire rotation direction, wherein a connecting portion 10A of the first groove and the second groove is formed in a curved shape, the first groove and the second groove are formed in a curved line having the center of the radius of curvature on the side of the reverse rotation direction of the designated tire rotation direction, and the third groove is formed in a curved line having the center of the radius of curvature on the side of the tire center portion.</p> |
