Ducati desmosedici is the name of the series of four stroke v4 prototype motorcycles developed by ducati to compete in the motogp world championship ducati abandoned the grand prix racing scene at the start of the 1970s technical rules changed in 2002 giving priority to four stroke machinery and turning the 500 class of world road racing into the motogp championship convincing ducati to make a much awaited return to the track this is an unofficial product and in no way associated with ducat