Ducati MULTISTRADA V45 Owner's Manual page 51

Lower the lever (3) towards the rear side, until it is
fully home.
3
2
Close the handle (2) and turn the key anticlockwise to
lock the bag.
Remove the key.
Make sure the bag is fixed correctly by pulling the
bag gently to the side and also checking the
swinging movement.
Repeat the same operation for assembling the other
side bag.
Fig 31
Fig 32
50