Worldbike (www.worldbike.org) is a 501(c)3 nonprofit that designs, distributes, and promotes load-carrying bicycles as a solution to development challenges worldwide. We feel that cargo bicycles can meet the transportation and load-hauling needs of people throughout the world, without the high financial and environmental costs of cars and trucks. Worldbike designers have developed several unique cargo bike models and have tested them in developing countries. We provide the designs for our bicycle modifications free of charge to anyone who is interested in making load carrying bicycles to improve the lives and earning capacity of people in developing countries.