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 DEG 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.
Tyre comprising an improved tread
2016-02-24
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |