Photo: youngrobv (flickr)

A bike can change a life.

The benefits of a bike can range from awakening your inner child to being an eco-friendly commuter. In a developing country, however, the simple bike becomes a locally sustainable method of alleviating poverty and building healthy communities.

The bicycle means greater access to educational and economic opportunities. (Cool fact: A bike can go three or four times faster than the pedestrian and uses five times less energy.) But in communities where people make only a few hundred dollars a year, a bicycle that costs an average of $100 is financially out of reach.

To help bridge the gap, various organizations have sprung up as bicycle distributors for developing communities mostly in Africa.

World Bicycle Relief, an organization fighting the HIV/AIDS crisis in Zambia, describes the power of bicycles in its mission statement:

Simple, sustainable transportation is an essential element in disaster assistance and poverty relief. Bicycles fulfill basic needs by providing access to healthcare, education and economic development. Bicycles empower individuals, their families, and their communities. Our mission is to provide access to independence and livelihood through The Power of Bicycles.

Organizations like this depend on donated bikes, which they then ship to community-based organizations that employ and train locals as bike mechanics. In Namibia, the Bicycling Empowerment Network has bicycle workshops (called Bicycle Empowerment Centres) stocked with tools and bicycle parts that act as the hub for bike distribution and repairs.

Even grassroots groups in the U.S. have joined the cause. Bikes to Rwanda, a project supported by Stumptown Coffee in Portland, Ore., ships cargo bicycles to farmers in a Rwandan coffee cooperative.

With today’s gas prices, cycling is a more attractive alternative for residents of places from Amsterdam to Zambia. But bikes aren't limited to transport anymore. They can be modified to sharpen knives, double as an ambulance, and even filter and store water — all innovative adaptations geared towards positive social change.