The Ducati Scrambler was the brand name for a series of single cylinder scrambler motorcycles made by Ducati for the American market from 1962 until 1974. Derived from the Ducati Diana road bike converted by Michael Berliner for dirt-track racing in America, these Scrambler models all had a maximum engine capacity of 250cc and are generally referred to as "narrow case Scramblers". They have bevel driven over head cams and a non desmo valve train.