Public Transportation System of Bicycles of the City of Buenos Aires.   The City has its Public Bicycle Transportation System, free, 24 hours, every day of the year. BA Ecobici by Tembici has 4000 bicycles and 400 stations distributed throughout the city, reaching 80% of the neighbors. Cycling improves your health and helps the environment. It saves time and allows you to connect more and better with the environment around you. Download the BA Ecobici app by Tembici to enjoy Buenos Aires on