For the NEWEST DESIGN click : https://youtu.be/JjyqP_4DfcU
Please watch also the 30% more efficient pedal-powered generator invention compare to conventional pedal powered generator...
Click : https://youtu.be/Dg8QxScT940
The mechanism shown above is efficient by more than 25 to 30 percent compare to movement of conventional crank arm system...For the best explanation regarding the efficiency, click https://youtu.be/rTBwHhHV6J0
Let us harness gravity's free energy using bicycle parts and the si
آی-ویدئو