I bought a touring windscreen from Cadre. When I first bought it, I did not buy the wing-lets. However, the holes were pre-drilled. When I decided to add the wing-lets, it was a simple matter of screwing them in. I would confirm with the dealer prior to ordering that the holes are there. Yes, in my case, I would never use that screen without the wing-lets again. Since it is warm where I live now, I have switched to the summer fly screen which makes the bike feel 100 lbs lighter in the turns. I can ride up to about 65 mph without feeling too much pressure so that it is a strain (the custom handlebars give you a slight forward lean which is about perfect for fly-screen riding).