The invention discloses a two-wheel
electric bicycle which mainly comprises a bicycle body and standardized parts, wherein the bicycle body mainly comprises a frame, a battery case, a controller case, a chain cover, a front decorating plate, a rear decorating plate, a hanger panel, a protective pad and the like. The frame mainly comprises a head tube, an upper tube, a lower tube, a
vertical tube, a loop lug, a bottom fork, a bottom fork axle tube, a vertical fork, a fork joint strip, a fork
branch tube, a hanger
branch tube, a hanger main tube and the like, wherein the lower tube includes a front lower tube and a rear lower tube, the frame and hangers are assembled and welded into a whole, the upper tube and the vertical fork are integrated into a coherent arc arch, the
vertical tube spans over the middle upper part of the upper tube, and the rear lower tube, the bottom fork and the hanger
branch tube are connected into a whole by an axis which is a tangent. The controller case is arranged behind the battery case, the battery case and the controller case are arranged in a space defined by the upper tube, the rear lower tube, the loop lug, the bottom fork and the vertical fork, the battery case is arranged at the middle part of the bicycle, and the battery case can be conveniently screwed (put) in or screwed (taken) out from the side of the frame just by rotating the battery case around a positioning arc surface at the lower part of the bicycle. All plastic parts are wrapped in a frame
metal piece with a frame structure.