| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tire composition for motorcycle which is low in rolling resistance, can contribute to fuel consumption and is excellent in rigidity feeling when turning, and to provide a tire for motorcycle. <P>SOLUTION: This tire composition for motorcycle has: a value of loss tangent tan δ in a measuring temperature of 0°C is ≥0.375, a value of dynamic complex modulus E* at 0°C is ≤40 MPa, and a physical property index computed by a following formula (1): physical property index=1,000×tan δ/E* from values of tan δ and E* of 0°C is ≥9.375 MPa<SP POS="POST">-1</SP>; a value of loss tangent tan δ in a measuring temperature of 20°C is ≥0.170, a value of dynamic complex modulus E* in 20°C is ≤18 MPa, and a physical property index computed by the formula (1) from value of tan δ and E* of 20°C is ≥9.44; and a value of loss tangent tan δ in the measuring temperature of 60°C is≤0.14, and the value of dynamic complex modulus E* in 60°C is ≥8 MPa. <P>COPYRIGHT: (C)2012,JPO&INPIT |
