A travel bag for a motorcycle that easily and securely attaches to a variety of different size motorcycle seat backs or sissy bars has built in wheels and a collapsible/extendible handle for rolling the bag when not mounted on the motorcycle. The collapsible handle and wheels are out of the way when the bag is fastened to the motorcycle. The collapsed handle serves as a support for the bag when mounted on the motorcycle. The bag is designed to be easily opened for ready access to the inside without spilling its contents while the bag is mounted on the motorcycle.