This type of Two-wheeled Cargo Bike is more lightweight, compact, and convenient, with a high-strength aluminum alloy frame that is lightweight, sturdy, and aesthetically pleasing. The extended carrier and detachable child seat are suitable for different riding needs, using an infinitely variable speed system and belt transmission, automatically adopting suitable gears under different road conditions and speeds to make riding smoother, quieter, and smoother. The dual batteries and front and rear oil disc design ensures longer and safer range. Long Tail Cargo Bike can be used for daily pick-up and drop off of children, small cargo transportation, commuting, takeout, and more.