| 摘要 |
<p>A motorcycle tire comprises a tread portion (2) provided on each side of the tire equator with primary oblique grooves (8) extending from a tread center region to the vicinity of the tread edge, and secondary oblique grooves (9) each having an axially outer end (9e) positioned axially inside the axially outer ends (8e) of the primary oblique grooves. The secondary oblique grooves comprises a pair of gradually widening parts (13) respectively extending from two extreme ends (9e,9i) of the secondary oblique groove in its longitudinal direction toward an intermediate position between the two extreme ends, while gradually increasing the groove width measured perpendicularly to the longitudinal direction, and a pair of gradually narrowing parts (14) which are disposed between the gradually widening parts, and of which groove widths gradually decrease from the gradually widening parts toward the intermediate position.</p> |
