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) and/or A-XI) A-I) (R 1) o Si-R 2 - (S-R 3) q-S x - (R 3 -S) q-R 2 -Si (R 1) o; A-XI) (R 1) o Si-R 2 - (S-R 3) s -S-X; and - 0.5 to 30 phf of at least one silane B having general empirical formula B-I) B-1) (R 1) o Si-R 4 -S-R 4 -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 A-XI) 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 A-XI) 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 and R 4 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 x is an integer from 2 to 10 and q is 1 or 2 or 3; and wherein s is 0 or 1 or 2 or 3; and X is a hydrogen atom or a -C(=O)-R 8 group wherein R 8 is selected from hydrogen, C 1 -C 20 -alkyl groups, C 6 -C 20 -aryl groups, C 2 -C 20 -alkenyl groups and C 7 -C 20 -aralkyl groups. - 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) and/or A-XI) A-I) (R 1) o Si-R 2 - (S-R 3) q-S x - (R 3 -S) q-R 2 -Si (R 1) o; A-XI) (R 1) o Si-R 2 - (S-R 3) s -S-X; and - 0.5 to 30 phf of at least one silane B having general empirical formula B-I) B-1) (R 1) o Si-R 4 -S-R 4 -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 A-XI) 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 A-XI) 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 and R 4 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 x is an integer from 2 to 10 and q is 1 or 2 or 3; and wherein s is 0 or 1 or 2 or 3; and X is a hydrogen atom or a -C(=O)-R 8 group wherein R 8 is selected from hydrogen, C 1 -C 20 -alkyl groups, C 6 -C 20 -aryl groups, C 2 -C 20 -alkenyl groups and C 7 -C 20 -aralkyl groups.