If you understand what is going on here, you're a step ahead of me... The HyperBike is a "Human Powered Traveling Machine" with lots of wheels and a pretty odd design. Allegedly, it's the world's fastest and safest human powered vehicle. I have nothing else to say.
Here are the specs: Eight Foot Wheels, Body Harness, Two Independant Brake Systems, Hand & Foot Controls, Aerobic & Resistant, Second only to swimming, No seat, As Fast As A Car, Full Body Workout, and also available in a Stationary Version.