A RUBBER COMPOSITION

A rubber composition based on at least an elastomer matrix, a carbon black, a silica, a silane coupling agent and short fibers, wherein the amount in phr of the silica is higher than that of the carbon black, wherein the amount of the silane coupling agent is more than 0.0% and less than 5.0% by weight per 100% by weight of the silica, wherein the amount of the short fibers is more than 0.0 phr and less than 5.0 phr and wherein the number-average length of the short fibers is less than 10 mm.