| 摘要 |
A tire which has a bead filler ( 5 ) arranged on the outside in the tire radius direction of one pair of bead sections provided at the right and left thereof, one pair of side wall sections ( 6 ) provided in the right and left of a tread section, and a rubber reinforcing layer ( 7 ) arranged in the side wall section ( 6 ), characterized in that the rubber composition constituting the bead filler ( 5 ) or the rubber reinforcing layer ( 7 ) comprises a conjugated diene based polymer having a vinyl bond content of 25% or more, a weight average molecular weight (Mw) of 200,000 to 900,000 and a molecular weight distribution (Mw/Mn) represented by the ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn) of 1 to 4 in an amount of 50 mass % or more of the rubber component thereof, and a resin and a curing agent therefor in a total amount of 3 parts by mass or more relative to 100 mass parts of the rubber, and exhibits a modulus of elasticity at 100% elongation at 25° C. of 5 MPa to 20 MPa and a dynamic modulus of elasticity at room temperature of 10.5 MPa or less. |
