| 摘要 |
The invention relates to a tyre comprising a tread (40) extending between an outer axial edge (45) and an inner axial edge (46), over a width L, wherein the tread comprises at least 4 circumferential ribs (411-414) separated by slots (421-423), in which the circumferential rib (411) adjacent to the outer axial edge of the tread extends from the outer axial edge over a width of at least 0.6 L and comprises a first portion (411a) with a width of at least 0.1 L, made from a first rubber composition and a second axially adjacent portion (411b) made from a second rubber composition, the first rubber composition having elasticity modulus values at 300% deformation, the Shore A hardness and the G∗ complex modulus at 60°C respectively comprised between 1.1 and 2.1 times, 0.95 times and 1.20 times, and 1.00 times and 2.10 times, the corresponding values of the second rubber composition. |
