Electric bike with fine quality, attractive designs and reasonable price. Packing dimensions: 1700mm(L)*450mm(W)*1000mm(H) Quality of the bike(no battery): =<50kg Carrying capacity: 150kg Max Speed: 40km/h Distance: >=40km Wheel size: 16" or 18" (optional) Climbing capacity: 5 degree Wheelbase: 1200mm Low-voltage protection: 42V Over-current protection: 15A Battery Capacity: 12AH Battery Standard voltage: 48V Charging time: =<8 hours