| 摘要 |
PROBLEM TO BE SOLVED: To enhance driving stability at turning by suppressing excessive falling down phenomenon of a tire easily generated at turning. SOLUTION: The tire 1 for the motorcycle is provided with a carcass 6; and a belt layer 7. The carcass 6 comprises carcass plies 6A, 6B, 6C comprising an organic fiber. The belt layer 7 is formed by helically winding a band-like ply in which a steel cord is covered with rubber on an outer side of the carcass at an angle of 5°or less relative to a circumferential direction. An outer surface border line 2a of a tread part 2 includes a crown circular arc Ac extending through a crown area Cr including a tire equator point CP and having a radius of curvature Rc and a shoulder circular arc As extending from a tread edge 2e to a tire equator side and having a radius of curvature Rs. A ratio (Rs/Rc) of a radius of curvature is 0.70 to less than 1.0. A camber ratio obtained by dividing tread height TH, i.e., height from the tread edge 2e to the tire equator point CP by tread half width (TW/2) is 0.60 or less. COPYRIGHT: (C)2008,JPO&INPIT
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