| 摘要 |
PROBLEM TO BE SOLVED: To effectively suppress increase in temperature of a tread part caused by the traveling of a vehicle.SOLUTION: In a tire 1, a plurality of projections 500 are provided on a groove bottom 50B2 of a groove part and the projections 500 extend toward the other side wall 50B3 facing one side wall 50B1 from one side wall 50B1 forming the groove part and are provided at every predetermined interval in the groove part. If the length of the projections is defined as L and the predetermined interval is defined as P, the tire satisfies the relation of 0.75L≤P≤10L. If the groove width of the groove part is defined as W, the width of the projections 500 is defined as TWf and if an angle, which is an angle formed by the extension direction x of the projections 500 and a groove center line WL and is formed on the opposite side from the rotation direction tr1 of the tire 1, is defined as &thetas;f, the tire satisfies the relation of TWf/cos&thetas;f≤0.9W. |
