its not that it cant be.. 600s from my past riding experience are a much nimbler bike and more forgiving... ive been riding on the street since 94 and have owned an f2 an f3 a 2000 gsxr 600, an 2005 r6 and my current 954.. my wife has owned an f4i and a 1996 seca ll ........ a few of my friends...