A wire bottle cage, which has an insert open end and a closed or stop end with a back formed of laterally-spaced longitudinally-extending wires with a bumper and guide at the front and a catch and guide at the back which serve to cause the corner, at the bottom of the bottle, to slide along the back wires as it is inserted into or removed from the cage, along with special mounting means to attach the cage to a cycle bar or similar support in such a manner as not to interfere with the sliding action of the bottle on the back wires and to positively lock the cage in place on the bar.