The Ducati Monster is a standard, or naked bike, motorcycle designed by Miguel Angel Galluzzi and produced by Ducati in Bologna, Italy, since 1993.[1][2][3] In 2005, Monster sales accounted for over half of Ducati's worldwide sales. Like most modern Ducati motorcycles, it has a 90° V-twin engine, called an L-twin by Ducati, with desmodromic valves, and tubular steel trellis frame, designed by Fabio Taglioni (1920–2001).