I saw the ultimate dual sport tire tonight on the movie "Mission Impossible II". The bad guy was chasing Tom Cruise and they are both on sport bikes with street tires (Ducati's I think). Then they go in the dirt and the tires transform into knobbies. They even show closeups of the knobbies spinning and skidding in the dirt. If anybody has one of these tires for sale or knows where I can get one let me know.