Cargo bikes is an emerging research domain within sustainable urban logistics and transportation planning. This field investigates the design, deployment, and socio-economic impacts of bicycles specifically engineered for transporting significant loads. Research in this area examines their operational efficiency and suitability for last-mile delivery, particularly within dense urban environments constrained by emissions regulations, physical access limitations, and parking availability. Key characteristics studied include payload capacity, range (especially with electric pedal-assist systems), infrastructure requirements, and user adoption patterns. The concept holds significance for developing low-carbon transport solutions, improving urban freight movement, and informing policy aimed at achieving decarbonization targets.