Abstract: A pack or carrier bag for attachment to the handlebars of a bicycle utilizes a specially constructed combination of a cleat fastened to the bag which is engaged by a hook which in turn engages the handlebar structure and the combination provides for rapid placement of the pack in position. Flexible fasteners connecting a bag with the bicycle structure assures stability of the pack and maintains its position on the handlebars while the bicycle is in motion.

Abstract: Carrier bags known as panniers are adapted for mounting upon the existing rear luggage carrier of a bicycle by means of specially constructed brackets arranged for mounting across the carrier frame. A novel construction and combination permits ready attachment of the brackets to the carrier and provides for secure attachment of the panniers to the bicycle frame during motion of the bicycle without resort to elaborate structures heretofore used for this purpose.