[ziggi]

Ok so trying not to turn this thread into a DS thing .... but I know Alfa and Nissan both used twin spark engines in 4 valve car motors for both performance and emmissions purposes. If Ducati don't see the benefit for 4v motors then this could be the end of the air-cooled 2v motor.

... but does it mean the end of the Supersport road bikes for Ducati?

... and why wouldn't a 1000DS superlight sell? It sold well for 5 years in the 900 version (6 including the FE).