I know it is not the same but I have M50 with a 200mm tire and it really hurt the handling in the twisties but it does look cool. I agree that a 180 is about as big as you want to go on the back and still have a great handling bike.
2011 Cross Roads Sunset Red
OEM short windshield, passenger backrest, crash bars, saddle bag bars, heated grips, vinyl closeouts, tachometer, ambient temp. WD lay down licence plate.