Abstract: A method and apparatus for bead setting and inflating tubeless tires on a vehicle wheel is provided. The apparatus for seating a loosely mounted tire ont he rim of the wheel comprises a compressed air tank, a support for the tank including rim engaging saddles slidably mounted on arms which ae releasably connected to the support body. Air from the tank passes out through a fast acting valve to an exhaust manifold to flexible lines and to nozzles mounted on the saddles to ensure the air is directed at the most efficient angle to the inside of the tire to expand it and force a seating of the beads. A main compressed air tank is used in conjunction with the bead seating air tank to supply air thereto and to simultaneously and subsequently supply air to the tire through a conventional tire stem to inflate the tire to the desired level.