For what my sixpenneths worth, you do need to drill and tap the swingarm to make another mounting point.
Rattler.....sticky back plastic, yeah right!
You will need to remove the rear wheel to drill and tap, although make sure the hugger is central to the top of the tyre before you remove the wheel, marking where you need the hole.
So on and off with the wheel a couple of times to get it central and hole in the right place! Itll be worth it!!
