A tyre pressure sensor is mounted at the distal end of a valve stem mounted on a wheel. A protective assembly comprises a body which is releasably attached to the wheel, and a cap which is releasably attached to the body. The valve stem and pressure sensor are enclosed within the body and the cap.

A tire valve cap having an ABS thread shield that will not interact with the different metal valve stems used on today's vehicles. The ABS insert uses a unique snap in ring design with anti-twist taps that hold the insert into an outer metal cap and at the same time will not twist around inside the cavity of the metal outer cap. Further, the cap includes a unique manner of holding the stem seal in place by using an over-molded in seal (e.g., square O-ring) that will not dislodge with use.

A tire valve cap having an ABS thread shield that will not interact with the different metal valve stems used on today's vehicles. The ABS insert uses a unique snap in ring design with anti-twist taps that hold the insert into an outer metal cap and at the same time will not twist around inside the cavity of the metal outer cap. Further, the cap includes a unique manner of holding the stem seal in place by using an over-molded in seal (e.g., square O-ring) that will not dislodge with use.

A tire inflation system wheel valve assembly is provided. The wheel valve assembly may include a body portion coupled with a cover portion. A diaphragm may be disposed between the body portion and the cover portion. The diaphragm and the body portion define a control cavity; and the diaphragm and the cover portion define a cover cavity. At least one control port is in fluid communication with the control cavity. In addition, a tire port is in selective fluid communication with the control cavity. Further, the cover portion defines an aperture in fluid communication with the atmosphere and the cover cavity.

An inflation manifold connected to dual pneumatic tires by air hoses provides a central location for tire inflation and location of pressure sensors. A hose block connected to dual pneumatic tires by air hoses provides a central location for location of pressure sensors. The pressure sensors may be TPMS sensors or a combination of TPMS sensor and pressure gauge.

A tubeless air valve stem has a body, an airtight element, and a sleeve. The body has a passage, a through hole, and at least one side hole. The passage is formed on a top end of the body. The through hole is formed through a bottom end of the body and is in communication with the passage. The at least one side hole is formed through an outer surface of the body and is in communication with the passage. The airtight element is disposed around the body. The sleeve is disposed around the body for closing the at least one side hole. Gas or liquid can be injected into a tubeless tire via the at least one side hole. The intake efficiency of the tubeless air valve stem can be maintained and is not influenced by the remaining reinforcing agent.

A mouthpiece includes: a mouthpiece main body portion including a tubular member to which an air supply device is connected on one end side and a tire valve is connected on the other end side; an annular protruding portion which is formed at a required position on the outer circumferential portion of the mouthpiece main body portion; a tire valve insertion hole provided in a tire-valve-side tip portion of the mouthpiece main body portion; an O-ring arranged on the air supply device side inside the tire valve insertion hole; and a back-up ring that presses the O-ring from the air supply device side of the O-ring; an actuation body having a substantially convex shape in which a cylindrical tip portion is reduced in diameter.

A mouthpiece includes: a mouthpiece main body portion including a tubular member to which an air supply device is connected on one end side and a tire valve is connected on the other end side; an annular protruding portion which is formed at a required position on the outer circumferential portion of the mouthpiece main body portion; a tire valve insertion hole provided in a tire-valve-side tip portion of the mouthpiece main body portion; an O-ring arranged on the air supply device side inside the tire valve insertion hole; and a back-up ring that presses the O-ring from the air supply device side of the O-ring; an actuation body having a substantially convex shape in which a cylindrical tip portion is reduced in diameter.

An air deflector that is at least partially disposable within a tubeless tire of a bicycle wheel includes a body. The body includes at least one wall defining an air input end and an air output end of the body. The body is attachable to a valve of the tubeless tire at the air input end, such that when air is introduced into the body via the valve, at least some of the air is deflectable by one or more walls of the at least one wall out of the body at the air output end.

An air deflector that is at least partially disposable within a tubeless tire of a bicycle wheel includes a body. The body includes at least one wall defining an air input end and an air output end of the body. The body is attachable to a valve of the tubeless tire at the air input end, such that when air is introduced into the body via the valve, at least some of the air is deflectable by one or more walls of the at least one wall out of the body at the air output end.