I've watched many youtube videos of motor bicycles breaking a speed limit of 45mph to 60mph. But how the heck did this guy make his bike go 85mph. Here's the video to prove it. Is it the way his body is positioned on the bike, or does he have some type of engine with a high compression and stroke rate. This is sick but crazy at the same time.
http://www.youtube.com/watch?v=_OzBSZaSqmw
http://www.youtube.com/watch?v=_OzBSZaSqmw