Control cable for transmitting a pulling and/or pushing force to an articulation point for a transmission system for a vehicle, wherein the control cable has the following features: a counterbearing for the introduction of an opposing force, directed opposite to the pulling and/or pushing force, into a sheath of the control cable; a pull rod which is mounted axially in the counterbearing and which is coupled to a wire core of the control cable, wherein the pull rod has, on an end protruding from the counterbearing, a moulded piece with a first component of a toothing; an adjustment unit for adaptation of a length of the control cable between the counterbearing and the articulation point, wherein the adjustment unit has a guide for the moulded piece, wherein the moulded piece is arranged in the guide so as to be movable axially and so as to be guided transversely with respect thereto; and a locking element for the fixing of the moulded piece in the adjustment unit, wherein the locking element is arranged in a recess, which is oriented transversely with respect to the guide, in the adjustment unit and is movable between a locking position and an adjustment position, wherein the locking element has a second component of the toothing, which second component is designed to, in the locking position, engage in positively locking fashion into the first component and prevent the axial movement of the moulded piece in the guide, characterized in that the locking element has an insert composed of a material which has a greater mechanical load capacity than a material of the locking element, wherein at least a part of the second component of the toothing is formed on the insert. a counterbearing for the introduction of an opposing force, directed opposite to the pulling and/or pushing force, into a sheath of the control cable; a pull rod which is mounted axially in the counterbearing and which is coupled to a wire core of the control cable, wherein the pull rod has, on an end protruding from the counterbearing, a moulded piece with a first component of a toothing; an adjustment unit for adaptation of a length of the control cable between the counterbearing and the articulation point, wherein the adjustment unit has a guide for the moulded piece, wherein the moulded piece is arranged in the guide so as to be movable axially and so as to be guided transversely with respect thereto; and a locking element for the fixing of the moulded piece in the adjustment unit, wherein the locking element is arranged in a recess, which is oriented transversely with respect to the guide, in the adjustment unit and is movable between a locking position and an adjustment position, wherein the locking element has a second component of the toothing, which second component is designed to, in the locking position, engage in positively locking fashion into the first component and prevent the axial movement of the moulded piece in the guide, characterized in that the locking element has an insert composed of a material which has a greater mechanical load capacity than a material of the locking element, wherein at least a part of the second component of the toothing is formed on the insert.