Abstract: A new air valve adapter for permitting connection of a standard tire air valve to the threaded air fitting of an air shock absorber. The inventive device includes a casing having first and second ends, an outer surface and an inner surface. The inner surface of the casing defines a central bore through the casing which extends between the first and second ends of the casing. The inner surface of the casing has a first threaded portion and a second threaded portion. The first threaded portion is positioned adjacent the first end of the casing. The second threaded portion is positioned adjacent the second end of the casing. The first threaded portion of the inner surface of the casing is designed for threadably engaging a threaded root end of an air valve inserted through the first end of the casing into the bore of the casing.