A control circuit for controlling the pressure of a tire wheel, wherein the tire wheel comprises: a rim; an inner tube, which encloses a first volume; a tire, fixed to the rim, which encloses the inner tube and a second volume external to the inner tube; the control circuit comprising: a controlled pressure line, connectable to a compressor; a first line, connectable to the controlled pressure line and connected to the first volume for introducing air inside the first volume; a second line, connectable to the controlled pressure line and connected to the second volume for introducing air inside the second volume; characterised in that: said control circuit comprises a first spool valve, which is a three way-two positions valve, having a first position in which the controlled pressure line is connected to the first line, and a second position, in which the controlled pressure line is connected to the second line; the first spool valve is normally kept in the first position; the first spool valve is switchable in the second position if the pressure in the first volume overcomes a predetermined pressure; said control circuit further comprises an outlet spool valve, connected to the second line and to an outlet line, which is a two way-two position valve and has a first position in which it closes a connection between the second line and the outlet line, and a second position in which it opens a connection between the second line and the outlet line, said outlet spool valve being normally kept in the first position, said outlet spool valve being switchable in the second position if the pressure in the second volume overcomes a predetermined pressure. a rim; an inner tube, which encloses a first volume; a tire, fixed to the rim, which encloses the inner tube and a second volume external to the inner tube; the control circuit comprising: a controlled pressure line, connectable to a compressor; a first line, connectable to the controlled pressure line and connected to the first volume for introducing air inside the first volume; a second line, connectable to the controlled pressure line and connected to the second volume for introducing air inside the second volume; characterised in that: said control circuit comprises a first spool valve, which is a three way-two positions valve, having a first position in which the controlled pressure line is connected to the first line, and a second position, in which the controlled pressure line is connected to the second line; the first spool valve is normally kept in the first position; the first spool valve is switchable in the second position if the pressure in the first volume overcomes a predetermined pressure; said control circuit further comprises an outlet spool valve, connected to the second line and to an outlet line, which is a two way-two position valve and has a first position in which it closes a connection between the second line and the outlet line, and a second position in which it opens a connection between the second line and the outlet line, said outlet spool valve being normally kept in the first position, said outlet spool valve being switchable in the second position if the pressure in the second volume overcomes a predetermined pressure. a controlled pressure line, connectable to a compressor; a first line, connectable to the controlled pressure line and connected to the first volume for introducing air inside the first volume; a second line, connectable to the controlled pressure line and connected to the second volume for introducing air inside the second volume; characterised in that: said control circuit comprises a first spool valve, which is a three way-two positions valve, having a first position in which the controlled pressure line is connected to the first line, and a second position, in which the controlled pressure line is connected to the second line; the first spool valve is normally kept in the first position; the first spool valve is switchable in the second position if the pressure in the first volume overcomes a predetermined pressure; said control circuit further comprises an outlet spool valve, connected to the second line and to an outlet line, which is a two way-two position valve and has a first position in which it closes a connection between the second line and the outlet line, and a second position in which it opens a connection between the second line and the outlet line, said outlet spool valve being normally kept in the first position, said outlet spool valve being switchable in the second position if the pressure in the second volume overcomes a predetermined pressure. said control circuit comprises a first spool valve, which is a three way-two positions valve, having a first position in which the controlled pressure line is connected to the first line, and a second position, in which the controlled pressure line is connected to the second line; the first spool valve is normally kept in the first position; the first spool valve is switchable in the second position if the pressure in the first volume overcomes a predetermined pressure; said control circuit further comprises an outlet spool valve, connected to the second line and to an outlet line, which is a two way-two position valve and has a first position in which it closes a connection between the second line and the outlet line, and a second position in which it opens a connection between the second line and the outlet line, said outlet spool valve being normally kept in the first position, said outlet spool valve being switchable in the second position if the pressure in the second volume overcomes a predetermined pressure.