Abstract: A pressure chamber is formed interiorly within one or more of the hollow tubular members of a cycle frame. Pressurized fluid, such as air, is supplied from the pressure camber by conduits through a pressure regulator and a control valve to a cycle mounted accessory, such as a pressurized fluid container or an inflatable seat. In one embodiment, the fluid container includes an expandable bag which expands as pressurized fluid is supplied thereto. The expandable bag pressurizes the liquid contents of the container to facilitate the discharge of the liquid through a discharge conduit which terminates adjacent the cyclist's face. The pressurization apparatus may also be employed to inflate an inflatable cycle seat or the cycle tires, or to pressurize the cycle frame for stiffness.