A pivoting handlebar assembly for a cycle is characterized by a pair of handlebars and a mechanical linkage system that permit the handlebars to be moved with relative ease from one to the other of a rearward outboard position and a forward inboard position while the cycle is in motion. The assembly includes means for assuring that the two handlebars will move in unison with one another relative to a central support. A trigger and cable-operated lock mechanism is provided for releasably locking the handlebars against pivotal movement.