sorry i couldn't reply u machan n its great to knw u r a CBR lover. well machan d bike look nice with d modified tale n i cant see d face n d number of d bike. what u gotto look at is d condition, any scratches n accident signs, mono shock, balance when turn make sure u dont feel any pressure to ur arms when u steer d bike, also oil leaks in mono n front shoks. beat can b differ according to d carb tuning. but d engine should b smooth dats one thing u cant explain u gotta listen n feel it. to b honest i dont recommend u 2 go n see dis stuffs n buy d bike u better take someone who knws about Japanese bikes. what i think is if d above saids r perfect with 600R head lights n d number is greater dan "U" series acording to d bike pic i think its a good deal