Bicycle : D

Usually we consider bicycles as means for leisure or as eco-friendly transports in urban areas. However, there are several places where consider and use bicycles in different ways. These are developing countries such as Congo, Tanzania, Rwanda. Bicycles are considered as transports like automobiles in developing countries. (similar to a school bus that takes children to and from school, or a cargo truck) When the bicycles are looked into, the frame of the bicycles are transformed so that goods can be loaded on or several passengers can get on.
Bicycle : D is a bicycle developed for a transport, which is the purpose of bicycles in developing countries. Its characteristics are
-To be capable of carrying several passengers or goods while moving.
-To simplify the structure of the frame, considering the price of the product.