I just put a 200 Avon Venom on the rear. When I removed the 180 I noticed that it had been slightly rubbing on the black plastic portion. This told me where to work. I took my Makita grinder and made an elongated recess about 3/8 deep and 2 in long into the chrome making sure that the grinding was downward so that it would not lift the chrome. I then coated the edge with silver paint. All is well. The ground area doesn't show.
I have a 240 now, but when I had my 200 the chrome belt guards fit fine without any modification. I tink it depends on your bike. All I had to do was remove the inner fender supports to prevent from rubbing on them.
OK, next question, removed rear dog a** brackets on the rear, have to admit it looks kinda naked now, need to get the rear tire tucked more into the fender, running Harley 12.5" lowering shocks, anyone know how low you can go. I do not ride 2-up, so that is not an issue. Thanks again