Ducati MULTISTRADA 1200S ABS 2015 Workshop Manual page 720

Removing the front sprocket
Undo the screws (2), and remove the chain cover (1).
Slacken the chain (Adjusting the chain tension).
To loosen nut (3) it is necessary to fold the lockwasher (4) edge.
Engage the first gear.
Loosen nut (3) and the lockwasher.
Remove the chain.
Remove the chain using tool (X) part no. 88713.1344.
The tool consists of a holder (A), a punch (B), a body (C) and two wrenches (D) and (E).
Fit the link to be opened into the holder (A).
Fit the punch (B) into the body (C) and manually undo the screw until the punch no longer protrudes.
Fit the holder (A) and the link into the body (C).
Manually turn the bolt (F) on body (C) so that the punch (B) gets against the pin, taking care that they are
aligned.