HIPOWER is the electric bicycle factory in China. Hope to establish the business relationship with you. For example,W series. 1.Aluminum alloy frame 2.Lithium iron battery (LIFEPO4) 48V/36V,10AH 3. Max.speed 25 km/h. 4. Aluminum alloy pedals. LED headlight. Exquisite basket. ebike(dot)sales2(at)hipowergroup(dot)com With mature technology and excellent R&D team, HIPOWER group is the leader in LIFEPO4 industry (Top 3 ). Our electric bicycles are all powered by our own battery. 1. High energy density, small size, light weight 2, Long life cycle, no memory effect, High C-Rate Discharge capability 3. Maintenance free, chemically stable 4. Environmental friendly, no heavy metal LEAD pollution.