Installed one of these luggage racks on my 2014 Monster 1200 yesterday.
Seems like a solid piece of kit and install was not too bad, although as usual the instructions were not very clear.
It has 2 support arms that bolt to the bike. Ducati kindly provided 4 threaded mounting points under the seat. You have to remove rear turn signals but leave the wires plugged in, remove grab handles, and the plastic undertray. Then you screw in 4 bolts stubs with pointy ends, and reinstall the undertray, push on it to mark where you will drill holes in the tray. Then you remove it and drill. I suggest you only screw those in as far as the need to go to stay put. I had a hard time getting good marks on the tray, ended up with the holes a little off the mark, and took a dremel to it after re installing it to enlarge the holes a bit.
Each support arm bolts to 2 of the holes and there is a spacer to hold it below the bike a little. Almost everything is black, the spacers are silver. Why? It was not clear to me the rear of the 2 bolts holding the grab handles was to be replaced by one of theirs, silver again! I redid that bit of work, re use the original nut.
The only other issue I had was I bolted the support arms up tight then tried to install the rack. The rack was a good inch too wide to bolt up. Huh?
Loosen the 6 bolts on the arms, attach the rack, then go around and tighten this corner, opposite corner, etc. It all bolted up nice finally and looks good. It must be under a fair amount of tension but I guess is OK. Attached a small Givi top case, and now I have a trunk for my junk.