An elastomeric composition for tyre compounds comprising at least - 100 phr of at least one diene elastomeric polymer, - at least 1 phr of at least a reinforcing filler, - at least 0.1 phr of at least a monotetrazole compatibilizing agent of formula wherein A is absent or represents an at least divalent organic group (linker), optionally comprising one or more hetero-atom(s), covalently bound to the position 2 or 5 of the tetrazole; R is a group covalently bound to position respectively 5 or 2 of the tetrazole, selected from linear or branched C 1 -C 10 alkyl; C 6 -C 20 aryl; C 3 -C 10 cycloalkyl; a saturated, unsaturated or aromatic mono or bicyclic, 5- or 6-membered, optionally benzocondensate, heterocyclyl comprising at least one heteroatom selected from N, S, O; R being in turn optionally substituted with at least one electron withdrawing group X or an electron donor group Y, or R being a group B, B represents a group with high affinity for the reinforcing filler, selected from a silane substituted with C 1 -C 5 alkoxyls, C 1 -C 5 alkyls and/or C 6 -C 10 aryls, a 2 B- group, a saturated, unsaturated or aromatic mono or bicyclic, 5- or 6-membered, optionally benzocondensated heterocyclyl, comprising at least one heteroatom selected from N, S and O, or an aromatic polycyclic hydrocarbon n is an integer from 1 to 3, provided that groups A, B and R do not comprise any 2,5 disubstituted tetrazole; and - 0 to 20 phr of a vulcanising agent. - 100 phr of at least one diene elastomeric polymer, - at least 1 phr of at least a reinforcing filler, - at least 0.1 phr of at least a monotetrazole compatibilizing agent of formula wherein A is absent or represents an at least divalent organic group (linker), optionally comprising one or more hetero-atom(s), covalently bound to the position 2 or 5 of the tetrazole; R is a group covalently bound to position respectively 5 or 2 of the tetrazole, selected from linear or branched C 1 -C 10 alkyl; C 6 -C 20 aryl; C 3 -C 10 cycloalkyl; a saturated, unsaturated or aromatic mono or bicyclic, 5- or 6-membered, optionally benzocondensate, heterocyclyl comprising at least one heteroatom selected from N, S, O; R being in turn optionally substituted with at least one electron withdrawing group X or an electron donor group Y, or R being a group B, B represents a group with high affinity for the reinforcing filler, selected from a silane substituted with C 1 -C 5 alkoxyls, C 1 -C 5 alkyls and/or C 6 -C 10 aryls, a 2 B- group, a saturated, unsaturated or aromatic mono or bicyclic, 5- or 6-membered, optionally benzocondensated heterocyclyl, comprising at least one heteroatom selected from N, S and O, or an aromatic polycyclic hydrocarbon n is an integer from 1 to 3, provided that groups A, B and R do not comprise any 2,5 disubstituted tetrazole; and A is absent or represents an at least divalent organic group (linker), optionally comprising one or more hetero-atom(s), covalently bound to the position 2 or 5 of the tetrazole; R is a group covalently bound to position respectively 5 or 2 of the tetrazole, selected from linear or branched C 1 -C 10 alkyl; C 6 -C 20 aryl; C 3 -C 10 cycloalkyl; a saturated, unsaturated or aromatic mono or bicyclic, 5- or 6-membered, optionally benzocondensate, heterocyclyl comprising at least one heteroatom selected from N, S, O; R being in turn optionally substituted with at least one electron withdrawing group X or an electron donor group Y, or R being a group B, B represents a group with high affinity for the reinforcing filler, selected from a silane substituted with C 1 -C 5 alkoxyls, C 1 -C 5 alkyls and/or C 6 -C 10 aryls, a 2 B- group, a saturated, unsaturated or aromatic mono or bicyclic, 5- or 6-membered, optionally benzocondensated heterocyclyl, comprising at least one heteroatom selected from N, S and O, or an aromatic polycyclic hydrocarbon n is an integer from 1 to 3, provided that groups A, B and R do not comprise any 2,5 disubstituted tetrazole; and - 0 to 20 phr of a vulcanising agent.