| 摘要 |
Pairs of motorcycle tires and a method for improving performance and resistance to wearing, consists of a tread including grooves, the tread consisting of a central area, sided by intermediate side areas and by projection areas, the latter being adjacent to the external borders of such tread. The sea/land ratio in the central area of the front tire is between 15% and 30%; the sea/land ratio in such central area of the rear tire is substantially lower than that of the other areas of the tire, the value being lower than 70%; the sea/land ratio in the intermediate side areas of the front tire and rear tire is between 20% and 40%; and the sea/land ratio in the projection areas of the front tire and rear tire is between 10% and 30%.
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