Uh... thats what its meant to do... be ridden fast.
That aside I wouldn't buy that bike with yall's money.
I see your point, and that being aside, my daughter in law has a Nissan 350 Z that registers 160 on the clock. 300 plus HP. It is meant to be driven fast,,,,,,,,,,,but she has sense enough not to do that on the streets. My son however,,,,,,,,he ain't so sensible. He airs it out quite often. Now i know many of these bikes do it on the track, but many of them do it on the streets too. I am just sayin, if a bike has been ridden that hard, chances are it has been dogged out. Admittedly by the seller it already has a replacement engine on it.
I agree with you on your comment, i wouldn't buy that bike with yall's money either.