ive been the owner of a 2011 xr for 3 weeks today. ive owned hondas, trumps, suziki, bmw, and for the last while harleys. i sold my 04 rk and ended up buying the xr. im still on the fence after about 800 miles. the xr is more powerfull, handles better, cheaper by several grand for the same year. but the rk was much smoother, it had no vibration till about 80 then not much. the xr has vibration spots at all different speeds. at some speeds it is worse than the harley was at ANY speed. also the big clunk between off throttle and on, ive been learning to work around it but its almost impossible to drive the twisties without clunking it. i dont regret buying it just wish i loved it more.