To provide a tire capable of suppressing the sliding of a rim in any directions such as the circumferential direction and the lateral direction against a complicated input while a vehicle is traveling.

This tire comprises a plurality of groove parts 1 in the contact area X of the surface of the tire in contact with the rim 20 under a bead part 11. The groove parts 1 are tilted to the circumferential direction of the tire. The groove parts 1 are arranged parallel to the lateral direction of the tire, and form a plurality of groups in the circumferential direction of the tire. The tilt angles of the plurality of groove part grooves to the circumferential direction of the tire are desirably different from each other. Preferably, the cross sectional shape of the groove part 1 is nearly triangular.