The invention concerns a tyre tread comprising a crosslinkable rubber composition comprising at least a styrene and a butadiene copolymer prepared in emulsion, and a method for improving wear resistance of such a tyre tread. The invention concerns a tyre tread including for the major part black carbon as reinforcing filler. The inventive tyre tread includes at least a crosslinkable rubber composition comprising at least a styrene and butadiene elastomeric copolymer prepared in emulsion and a reinforcing filler comprising as major constituent carbon black, said carbon black being present in said composition in an amount not less than 55 parts per hundred parts of said or each polymeric elastomer. Said composition is characterised in that each or said copolymer comprises an emulsifier in an amount varying substantially between 1 and 3.5 parts per hundred of said or each elastomeric copolymer.