Abstract: An attachment for a bicycle serving as a hitch for towing a small trailer or coaster. The bicycle hitch can be attached to any standard bicycle without modifying the same and is adjustable to suit bicycles of various wheel diameters. The bicycle hitch includes a curved tubular member subtending substantially a quarter circle, adapted to spacedly surround the top back quarter portion of the rear driving wheel of a bicycle in the plane of said rear wheel and substantially coaxial therewith. This curved member is adjustably attached to the bicycle frame or to the seat support rod at its front end, while its rear end carries a standard ball member for hitching purposes.