Ducati started development of its 800 cc motorcycle extremely early .
According to Ducati 's racing chief Filippo Preziosi , by August 2006 , Ducati had already built twenty 800 cc engines with various specifications .
Ducati started development of its 800 cc motorcycle extremely early , and according to Ducati 's racing chief Filippo Preziosi , by August 2006 , Ducati had already built twenty 800 cc engines with various specifications .