RUBBER COMPOSITION AND TRUCK TIRE

The present invention is directed to a rubber composition for a truck tire, the rubber composition comprising 70 phr to 95 phr of polyisoprene, 5 phr to 30 phr of a polybutadiene rubber having a cis content of less than 60% and being functionalized for the coupling to silica, as well as 40 phr to 80 phr of a filler comprising predominantly silica. Furthermore, the present invention is also directed to a tire comprising such a rubber composition and a truck with said tire.