Reviving a Modular Cargo Bike Design from the 1930s - Core77https://www.core77.com/posts/136773/Reviving-a-Modular-Cargo-Bike-Design-from-the-1930s
Your average cargo bike typically has a long frame divided into two areas: One for the cargo, and one for the rider. The rider is positioned just forward of the rear wheel, with a chain delivering power from the pedals to that rear wheel. French mobility