Welcome, I'am Terry Hope a self-taught solar electric vehicle builder, after committing 3 years of my life building my first solar electric vehicle (THEKPV), I had learned enough to begin another solar EV project which I named SolarCross.
100% Solar Powered test ride
Close up view
Drifting and Burnouts
This solar EV is built upon an 1998 Specialized FSR mountain bike which cost me $200 with an additional $500 to convert to solar electric.
Efficiency and portability are key features to my ebike design, like the custom freewheel crank that consists of one sprocket and two chainrings. On the outside is a 80T - 0.25" chain sprocket which the electric motor drives, inside this sprocket is a 42T mtb chainring and behind this is 22T chainring. The 22T chainring can reach a speed of 22km/h while the 42T chainring can achieve 40km/h and +50km/h is possible with the rider pedaling along with the motor.