The philosophy behind our concept is to hide the battery and let it be a natural part of the design on the bicycle. Let the electric bicycle look like a normal bicycle. And let it work like one when the power is off. All our batteries are easily removable for recharge. There has been inside the frame batteries available for some years. But these batteries has been fixed inside the frame. That means the consumer has to carry the complete bike for recharge. That's why our philosophy is ALL batteries
must be easily removable. The concept are patented. Some clients has a license fee agreement with Protanium to use this system.