| 摘要 |
A tyre for a two-wheeled vehicle comprising a ground contacting tread (10) having at least one tread groove (11) formed therein and extending axially from the tread centre to the tread edge, characterised in that a first region (1) of the tyre tread (10), which is the central tread region and is the region of contact between the tyre and the ground when the motorcycle is in the condition of moving in a straight line, the alignment of the tread groove is substantially circumferential, and in a second region (2) of the tyre tread (10), which is at the axial edge of the tread and is the region of contact when the motorcycle is in the condition of turning under maximum cornering, the alignment of the tread grooves is substantially transverse, and in a third region (3), which is the tread region between the first central region (1) and the second axial region (2) and which is the ground contacting region when the motorcycle is turning at less than the maximum cornering condition, the groove alignment changes progressively axially outwardly from substantially circumferential to substantially transverse so that in the first, second and third axial regions of the tyre tread (10) the tread grooves (11) are substantially aligned with the resultant forces acting on the tyre tread surface in the contact region between the tread and with the ground. <IMAGE> |
