Ducati MULTISTRADA Instructions De Montage page 19

Fit the back plate (6) to key-lock-and-mount assembly, paying
attention to keep ball (5) and spring (4) in place.
Fasten back plate (6) to key lock by means of screw (7)
supplied. Tighten screw completely.
6
5
4
7
6
UK
fig. 8
fig. 9
19