Portable design and Powerful function, welcomed by the customers so much, convenient to ride for travelling, also it can be put into the trunk after folding, so when there is traffic jam, after u park your car in the carport, you could take it out to ride for working and ride back to your car, convenient and bring you exercise the Fashion exterior and folding function is just the experience for sense moreover, the inside design of the bike will be more outstanding. Bodywork and rack are made up of punched high quality steel plate and the shape will be permanent the surface of the bodywork and rack is painted with grilled lacquer which could keep the bodywork and rack bright and new all the time the non-brush direct current electromotor which characterized in weak power (250W) and strong torque(54N/M), so to strengthen the climbing capacity for reaching 12degree Environmental protecting Lithium Battery which characterized in High energy density, High operation voltage, Heavy loads, Reliable discharge performance, Rapid charging, Long cycle life and No pollution, once fully charged, it could be travelled for 30-40km patently designed chainless transmission system, gimbal system for man-power and clutch system are the revolutionary progress in the industry of electric bicycle and break through the bottleneck of tranditional electric bicycle