The prototype propose a pneumatic motor, the wheels are impulsed by air. So the propulsion energy comes from a air compressor (althoug air compressor even it can propulse by electricity), due that the protoype is a bycicle: the air compressor is impulsed by the legs of a person and one gear system installed whit the pedals of the bicieir-aicycle. Under this concept, the simulation turns around, how many revolutions can do the bicieir-aircycle. And finally with that count of revolutions how much air can percibe the air compressor to inyect directly on the system wheels... 
Is a bycicle propulsed by air compressed.
This prototype was made to improve the pneumatic cycle