Tire comprising a tread having a first lateral rib (421) adjacent to the outer axial edge of the tread and a central rib with a first portion (4211, 4111, 4121, 4131) having axial width exceeding 20% the axial width of the relevant rib made from a rubber composition containing an elastomer and a reinforcing filler consisting predominantly of carbon black. Axially adjacent second portion (4212, 4112, 4122, 4132) is made of a rubber composition containing an elastomer and a reinforcing filler a minority proportion of which consists of carbon black. The rubber compositions that make up the respective second portions of the first lateral rib and the central rib all have a tan δ0 value which is less than the tan δ0 value of the rubber compositions that form the respective first portions of the first lateral rib and the central rib.
Tire With Improved Tread
2017-01-05
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |