For electric bicycle 500w, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our electric bicycle 500w has been well received by many customers and enjoyed a good reputation in many countries. Changzhou Coolfly Intelligent Technology Co., Ltd. electric bicycle 500w have characteristic design & practical performance & competitive price, for more information on the electric bicycle 500w, please feel free to contact us.