Abstract: A vehicle wheel assembly (1) for supplying compressed air from a vehicle axle to a tyre (3) comprises a vehicle wheel (5) and a control valve assembly (7). The wheel (5) comprises a wheel hub (9) for mounting the wheel (5) to a vehicle (V); and a wheel rim for mounting a tyre (3) on the wheel (5). A transfer line (19) is provided in the wheel for transferring compressed air from the wheel hub to the wheel rim (11) for inflating the tyre (3). The control valve assembly (7) comprises an inlet, an outlet and a control valve (25) operably located between the inlet and the outlet for controlling passage of compressed air between the inlet and the outlet. The control valve assembly (7) is removably disposed in the wheel hub (9) such that fluid communication is established between the control valve assembly (7) and the transfer line (19).