No, not all Ducati motorcycles have dry clutches. Ducati has used both dry and wet clutches in their motorcycles depending on the model and design. Traditionally, Ducati motorcycles were equipped with dry clutches, which are exposed and require periodic maintenance. Dry clutches provide a more direct and sporty feel, and their characteristic sound is often associated with Ducati bikes.
Wet clutches tend to be smoother and require less maintenance, but they may not provide the same tactile feedback and distinctive sound as dry clutches.
So, while Ducati has a reputation for using dry clutches, it's important to note that they have models with both dry and wet clutch systems in their lineup.