The Ducati Dry Clutch and Its Distinctive Rattle | allaboutbikes.com | Ductalk Ducati News | Scoop.it
Just as you can tell when a Harley is somewhere in the vicinity by the distinctive rumble of its V-Twin, so can you tell when a Ducati has just pulled up next to you.

http://www.allaboutbikes.com/feature-articles/motorcycle-basics/6866-the-ducati-dry-clutch-and-its-distinctive-rattle