Abstract: A storage apparatus for a bicycle intended for placement between the down tube and seat tube of the frame of the bicycle. The storage apparatus has a driving wall, an opposing wall, and at least one side wall. The side wall extends perpendicularly from the driving wall and/or the opposing wall to a length that does not substantially exceed the frame tube diameter. The side wall resides between the driving wall and opposing wall when the apparatus is in the closed position. Items can thereby be stored between the driving wall and opposing wall of the apparatus and be conveniently accessed by the cyclist.