Sulfur-crosslinkable rubber mixture containing at least the following constituents: - at least one diene rubber; and - 10 to 300 phr of at least one silica; and - 1 to 30 phf of at least one silane A having general empirical formula A-I) A-I) (R 1) o Si-R 2 -S-H; and - 0.5 to 30 phf of at least one silane B having general empirical formula B-I) B-I) (R 1) o Si-R 3 -(S-R 4) u -(S-R 5) v -Si(R 1) o wherein o may be 1 or 2 or 3 and the radicals R 1 may be identical or different and are selected from C 1 -C 10 -alkoxy groups, C 6 -C 20 -phenoxy groups, C 2 -C 10 -cyclic dialkoxy groups, C 2 -C 10 -dialkoxy groups, C 4 -C 10 -cycloalkoxy groups, C 6 -C 20 -aryl groups, C 1 -C 10 -alkyl groups, C 2 -C 20 -alkenyl groups, C 2 -C 20 -alkynyl groups, C 7 -C 20 -aralkyl groups, halides or alkyl polyether group -O-(R 6 -O) r -R 7, wherein the radicals R 6 are identical or different and are branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C 1 -C 30 -hydrocarbon group, r is an integer from 1 to 30, and the radicals R 7 are unsubstituted or substituted, branched or unbranched monovalent alkyl, alkenyl, aryl or aralkyl groups, or two R 1 correspond to a dialkoxy group having 2 to 10 carbon atoms wherein in that case o < 3, or two or more silanes of formulae A-I) and/or B-I) may be bridged via radicals R 1 or by condensation; and with the proviso that in the formulae A-I) and B-I) in each (R 1) o Si group at least one R 1 is selected from the abovementioned options where this R 1 i) is bonded to the silicon atom via an oxygen atom or ii) is a halide; and wherein the radicals R 2, R 3, R 4 and R 5 in each molecule and within a molecule may be identical or different and are branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C 1 -C 30 -hydrocarbon groups, and wherein u is 0 or 1 or 2 or 3 and v is 0 or 1. - at least one diene rubber; and - 10 to 300 phr of at least one silica; and - 1 to 30 phf of at least one silane A having general empirical formula A-I) A-I) (R 1) o Si-R 2 -S-H; and - 0.5 to 30 phf of at least one silane B having general empirical formula B-I) B-I) (R 1) o Si-R 3 -(S-R 4) u -(S-R 5) v -Si(R 1) o wherein o may be 1 or 2 or 3 and the radicals R 1 may be identical or different and are selected from C 1 -C 10 -alkoxy groups, C 6 -C 20 -phenoxy groups, C 2 -C 10 -cyclic dialkoxy groups, C 2 -C 10 -dialkoxy groups, C 4 -C 10 -cycloalkoxy groups, C 6 -C 20 -aryl groups, C 1 -C 10 -alkyl groups, C 2 -C 20 -alkenyl groups, C 2 -C 20 -alkynyl groups, C 7 -C 20 -aralkyl groups, halides or alkyl polyether group -O-(R 6 -O) r -R 7, wherein the radicals R 6 are identical or different and are branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C 1 -C 30 -hydrocarbon group, r is an integer from 1 to 30, and the radicals R 7 are unsubstituted or substituted, branched or unbranched monovalent alkyl, alkenyl, aryl or aralkyl groups, or two R 1 correspond to a dialkoxy group having 2 to 10 carbon atoms wherein in that case o < 3, or two or more silanes of formulae A-I) and/or B-I) may be bridged via radicals R 1 or by condensation; and with the proviso that in the formulae A-I) and B-I) in each (R 1) o Si group at least one R 1 is selected from the abovementioned options where this R 1 i) is bonded to the silicon atom via an oxygen atom or ii) is a halide; and wherein the radicals R 2, R 3, R 4 and R 5 in each molecule and within a molecule may be identical or different and are branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C 1 -C 30 -hydrocarbon groups, and wherein u is 0 or 1 or 2 or 3 and v is 0 or 1.