Bikes not bombs does great work in the community as well as with the international organizations they partner with. They have mechanic training programs for city youth, and help provide needed transportation in many countries through international partnerships. Bicycle is the number one form of transportation in the world. They are still a small grassroots organization. Last year was my first year riding in the bike-athon and I did the shortest route. This year I am challenging myself to do the next route (which unfortunately is 35 miles - the longest ride I have done to date is about 20 miles).