Moldings equipped with reinforcing materials and made of polyurethaneurea elastomers with from 70 to 95 mol% urea content and from 5 to 30 mol% urethane content, based in each case on mol% of an NCO equivalent, obtainable via reaction of a reaction mixture made of an A component made of A1) aromatic diamines which at least have an alkyl substituent in each case in an ortho-position with respect to the amino groups, A2) an aliphatic component composed of at least one polyether polyol and/or polyester polyol which respectively has hydroxy and/or primary amino groups and which has a number-average molecular weight of from 500 to 18 000 and a functionality of from 3 to 8, and A3) optionally catalysts and/or optionally additives, and also of, as B component, prepolymer which comprises isocyanate groups and which derives from the reaction of B1) a polyisocyanate component from the group consisting of polyisocyanates and polyisocyanate mixtures of the diphenylmethane category and liquefied polyisocyanates of the diphenylmethane category with B2) at least one polyol component with a number-average molecular weight of from 500 to 18 000 and with a functionality of from 2.7 to 8 from the group consisting of polyether polyols optionally comprising organic fillers and polyester polyols optionally comprising organic fillers, characterized in that component A and/or component B comprises hollow rigid microspheres and carbon fibers. A component made of A1) aromatic diamines which at least have an alkyl substituent in each case in an ortho-position with respect to the amino groups, A2) an aliphatic component composed of at least one polyether polyol and/or polyester polyol which respectively has hydroxy and/or primary amino groups and which has a number-average molecular weight of from 500 to 18 000 and a functionality of from 3 to 8, and A3) optionally catalysts and/or optionally additives, A1) aromatic diamines which at least have an alkyl substituent in each case in an ortho-position with respect to the amino groups, A2) an aliphatic component composed of at least one polyether polyol and/or polyester polyol which respectively has hydroxy and/or primary amino groups and which has a number-average molecular weight of from 500 to 18 000 and a functionality of from 3 to 8, and A3) optionally catalysts and/or optionally additives, and also of, as B component, prepolymer which comprises isocyanate groups and which derives from the reaction of B1) a polyisocyanate component from the group consisting of polyisocyanates and polyisocyanate mixtures of the diphenylmethane category and liquefied polyisocyanates of the diphenylmethane category with B2) at least one polyol component with a number-average molecular weight of from 500 to 18 000 and with a functionality of from 2.7 to 8 from the group consisting of polyether polyols optionally comprising organic fillers and polyester polyols optionally comprising organic fillers, B1) a polyisocyanate component from the group consisting of polyisocyanates and polyisocyanate mixtures of the diphenylmethane category and liquefied polyisocyanates of the diphenylmethane category with B2) at least one polyol component with a number-average molecular weight of from 500 to 18 000 and with a functionality of from 2.7 to 8 from the group consisting of polyether polyols optionally comprising organic fillers and polyester polyols optionally comprising organic fillers, characterized in that component A and/or component B comprises hollow rigid microspheres and carbon fibers.