I followed a bike today on the freeway, seemed to be a mid to late nineties bike. kinda modern styling, but still had that square-ish seat section and a skinny rear tire. anyway, this thing reved like CRAZY. i couldnt belive it. when he would take off by the time he shifted, the frequency of the sound was so much higer than any engine ive ever heard. almost a ringing sound, and when he let of, it backfired so rapidly, it sounded like a harley revved up bbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrb if you get can imagine like 3 backfires per second... to the point..... what the highest reving production bike?