Funny I am not sure about a 200 but I have a 230 on mine. I know of only one tire to do the 230 with and that is an Avon AM21. The reason this works is because of how stiff the sidewalls are. I didn't have to do any mod's on mine and I have like an 1/8th in clearance on the driveshaft side. I know I have read that some said the had to dent in the driveshaft side to get clearance. Some have cut off their fender nibs but I didn't see a need for that either. here is what it looks like.
What is your motivation for plus sizing the rear tire?
His motivation is he asked a question. I have met Steve and he is free and over 21. If he is paying for it, what does it really matter? He doesn't need to justify why he wants a wider tire on HIS MOTORCYCLE.