Kentfa Advanced Technology Corp. has established in 2001. We have been devoted to the research and development of electric bicycles and electric scooters over a long period time. Also, we spare no efforts to invest in capital and manpower to develop the patent of spare parts constantly for controller system and folding mechanism. Regarding folding mechanism, we have developed the bikes successfully which can be folded and unfolded in one second. Our folding way of bikes is a significant reform, compared to previous folding way. We designed the bikes by adopting the concept of ease, safety and convenience. Furthermore, this folding technique has acquired patents covering many countries.