| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire particularly obtaining high grip, high durability and high stability at cornering required for a sport type motorcycle of high power. SOLUTION: Both sides in a tire width direction of a tread part 20 are formed by a second rubber member 22B having the smallest modulus and a central side in the tire width direction is formed by a first rubber member 22A of the second highest modulus. Therefore, enhancement of durability at a central part side and enhancement of stability at cornering are made compatible. Further, a third rubber member 22C of the highest modulus is arranged at the inner side in the tire width direction than the second rubber member 22B and thickness of the third rubber member 22C is smoothly and gradually reduced toward both sides in the tire width direction. Therefore, rapid fluctuation of handling by a bank angle is eliminated as compared with a conventional one in which the tread part 20 is formed by two kinds of rubber members and durability of the central part can be further enhanced. COPYRIGHT: (C)2007,JPO&INPIT |
