 The 2012 championship added the Class C category, a step-up for those wanting to race larger capacity bikes.The bikes were still Ducati with rules to limit costs.The motorcycle must be either a water cooled Ducati twin cylinder motorcycle with 4 valves per cylinder produced between 1988 and March 2002 or an air-cooled 2 valve Ducati twin cylinder produced between 1992 and March 2005, displacing no more than 997cc.