| 摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of loose in the edge of a belt layer. SOLUTION: A radial tire comprises a carcass 6 and a belt layer 7 including belt plies 7A-7C. The maximum width of th belt layer is 1.00-2.00 times the tire section height, a cushion rubber G1 is positioned between the outside in the tire axial direction of a first belt ply 7A and the carcass 6, the thickness of the cushion rubber d1 in the outer edge in th axial direction of the first belt ply 7A is 1.0-5.0 mm, d1 is smaller than the rubber thickness d2 between a second and a third plies in the outer edge in the axial direction of a third belt ply 7C, the distance in the axial direction W0 from the outside of the axial direction of the belt ply 7A to the inner edge in the axial direction of the tire of the cushion rubber G1 is 10.0-25.0 mm, and the difference (W1-W2) of the distance in the axial direction W1 between the outer edge in the axial direction of the first belt ply 7A and the outer edge in the axial direction of the second belt ply and the distance in the axial direction W2 between the outer edge in the axial direction of the second belt ply and the outer edge in the axial direction of the third belt ply is 0-5.0 mm. |
