Abstract: A second set of handlebars in the nature of Aero handlebars is provided on a bicycle using a bicycle U-lock of the type often used to lock the bicycle as the second set of handlebars. The U-lock has a lock body with spaced apart legs. A bracket assembly releasably clamps the U-lock to the normal transverse, first set of handlebars such that the legs of the lock body extend forwardly from the first set of handlebars similarly to a set of Aero handlebars. The U-lock and bracket assembly can be sold together as a complete kit, or the bracket assembly can be sold separately as a kit for use with a U-lock already owned by the bicycle user.