A bicycle bottle cage having an attachment mechanism that will securely fasten the cage to the handle bars of a bicycle. The bottle cage portion has a generally conventional configuration. An attachment bracket is welded to the rear portion of the cage and includes a continuous loop formed to serpentine fashion to extend over the handle bars and beside and over the goose neck. A clamp plate extends beneath the goose neck to engage each side of the attachment bracket. The clamp plate includes a lock screw which engages the bottom of the goose neck to firmly attach the bracket thereto.