The Ducati Monster (called Il Mostro in Italian) is a motorcycle designed by Miguel Angel Galluzzi and produced by Ducati in Bologna, Italy since 1993. It is a naked bike, characterized by an exposed engine and frame. The deliberate use of the trellis frame in the Ducati Monster is an integral part of the motorcycle's design allowing for both aesthetic appeal and for structural efficiency.In 2005, Monster sales accounted for over half of Ducati's worldwide sales.