A multiple extrusion head for producing tread profiles of tyres, with (a) a base body, having - a first supply opening for connecting a first extruder, - a second supply opening for connecting a second extruder, - a third supply opening for connecting a third extruder and - a fourth supply opening for connecting a fourth extruder, (b) a first head part, which - is mounted so that it can swivel in relation to the base body and which has a receiving means that is open in the direction of the base body, (c) a second head part which is mounted so that it can swivel in relation to the base body, (d) at least one flow channel insert (18, 20), which is mounted so that it can swivel in relation to the base body, (e) wherein the first head part and the second head part can be brought into a closed state, in which - the head parts (14, 16) are connected to one another in a pressure-resistant manner, and - a first flow channel, a second flow channel, a third flow channel and a fourth flow channel are formed in the multiple extrusion head, wherein each flow channel is connected to a supply opening, characterized in that (f) the base body has a fifth supply opening for connecting a fifth extruder and that (g) the multiple extrusion head has a second flow channel insert, wherein the flow channel inserts (18, 20) are mounted so that they can swivel about a common rotation axis (D 14) in relation to the base body, wherein the second flow channel insert - independently of the first flow channel insert is mounted so that it can swivel in relation to the base body about the common rotation axis (D 14) and - borders a fifth flow channel, which is connected to the fifth supply opening. (a) a base body, having - a first supply opening for connecting a first extruder, - a second supply opening for connecting a second extruder, - a third supply opening for connecting a third extruder and - a fourth supply opening for connecting a fourth extruder, - a first supply opening for connecting a first extruder, - a second supply opening for connecting a second extruder, - a third supply opening for connecting a third extruder and - a fourth supply opening for connecting a fourth extruder, (b) a first head part, which - is mounted so that it can swivel in relation to the base body and which has a receiving means that is open in the direction of the base body, - is mounted so that it can swivel in relation to the base body and which has a receiving means that is open in the direction of the base body, (c) a second head part which is mounted so that it can swivel in relation to the base body, (d) at least one flow channel insert (18, 20), which is mounted so that it can swivel in relation to the base body, (e) wherein the first head part and the second head part can be brought into a closed state, in which - the head parts (14, 16) are connected to one another in a pressure-resistant manner, and - a first flow channel, a second flow channel, a third flow channel and a fourth flow channel are formed in the multiple extrusion head, wherein each flow channel is connected to a supply opening, characterized in that - the head parts (14, 16) are connected to one another in a pressure-resistant manner, and - a first flow channel, a second flow channel, a third flow channel and a fourth flow channel are formed in the multiple extrusion head, wherein each flow channel is connected to a supply opening, (f) the base body has a fifth supply opening for connecting a fifth extruder and that (g) the multiple extrusion head has a second flow channel insert, wherein the flow channel inserts (18, 20) are mounted so that they can swivel about a common rotation axis (D 14) in relation to the base body, wherein the second flow channel insert - independently of the first flow channel insert is mounted so that it can swivel in relation to the base body about the common rotation axis (D 14) and - borders a fifth flow channel, which is connected to the fifth supply opening. - independently of the first flow channel insert is mounted so that it can swivel in relation to the base body about the common rotation axis (D 14) and - borders a fifth flow channel, which is connected to the fifth supply opening.