| 摘要 |
A tire (10) having a designated rotation direction has: first main grooves (14) multiply provided on a tread (12) with gaps interposed therebetween in the tire circumference direction, each main groove being provided with a first groove section (16) extending diagonally in relation to the tire width direction from an inner end section (14A) positioned at the tread center section (12C) to the side opposite the tire rotation direction, and a second groove section (18) extending to the tread end (12E) from the first groove section (16) toward the outer side in the tire width direction, so that the angle in relation to the tire width direction becomes smaller than that of the first groove section (16); and first subsidiary grooves (20) provided on the tread (12), extending from the first groove section (16) to the side opposite the tire rotation direction in the direction of the normal to the first groove section (16), and ending at the tread center section (12C). |
