Abstract: A bicycle locking apparatus that is permanently, easily and quickly attachable to a bicycle frame. There is a housing having sides which extend upwardly beyond the top thereof and also rearwardly of the rear end of the housing. The side parts that extend upwardly and rearwardly of the housing form channels into which the horizontal frame member and the downwardly and forwardly inclined frame member are respectively received. In the upper channel, a strip of resilient material is secured by any suitable type of adhesive such as an epoxy cement and extending from the rear wall of the housing into the rear channel is a similar material which is secured to the rear wall of the housing by epoxy cement or any other suitable means. There are upwardly opening recesses at the top and rearwardly opening recesses at the rear. Locking strips are secured to the inner sides of the wall parts to define part of the recesses and have outwardly or lanced tongues or ears which extend into the recesses.