| 摘要 |
The purpose of the present invention is to provide a pneumatic tire which has a good balance between durability and low heat generation at high levels. A pneumatic tire which is provided with: a carcass that is composed of a carcass cord ply extending in a toroidal shape along a pair of bead parts, in each of which a bead core is embedded, a pair of side wall parts and a tread part; and a belt that is composed of a belt cord layer which is arranged on the radially outside the crown part of the carcass. At least one constituent member, namely the carcass cord ply and/or the belt cord layer is provided with an end rubber that covers and wraps an end portion of the constituent member; the end rubber has a loss tangent (tan δ) of more than 0.20 but 0.35 or less at 25°C at a strain of 2%; the difference (∆E') between the storage modulus of elasticity (MPa) at 25°C at a strain of 0.1% and the storage modulus of elasticity (MPa) at 25°C at a strain of 2% is from 10 MPa to 30 MPa (inclusive); and a coating rubber covering the cord within the constituent member, which is provided with the end rubber, has a loss tangent (tan δ) of 0.20 or less at 25°C at a strain of 2%. |
