Bikes are made out of lightweight aluminum and would be outfitted with a GPS tracking system to retrieve them if stolen. The system would also include online reservations and a card swiping system to track costs. This would be dependent on distance and time, but the bikes may even be rented out for free for a short period of time. Though Copenhagen is considered to be one of the world's most environmentally friendly cities, with about 37% of all citizens commuting to work by bicycle, RAFAA hopes to increase that number to 50% by 2015.
RAFAA's websitevia [Inhabitat]