Bicing is the name of a ‘community bicycle program’ in Barcelona inaugurated on March 22, 2007, similar to the Vélô service in Toulouse, and Vélib‘ in Paris.
This Bicing system is also working in Buenos Aires: the city government lends a bicycle for free for a period of up to two hours. They can be removed in Bicing stations and be submitted in another city Bicing station. This system is not yet available for foreigners, but are planning to do so.
For now, the option for tourists to visit and discover a different Buenos Aires is to rent a bicycle, for example with La Bicicleta Naranja or Bike tours. They have a large fleet of bicycles, perfectly suitable for street circuits. This service includes safety helmets and locks.
They also organize tours where you’ll be immersed in history, culture and current affairs of the city through the eyes of the locals.
However, whether renting a bike or touring, it is interesting to know which streets are those with greater exposure to risk. And based on the same, determining routes or walks. The most dangerous streets are the avenues Rivadavia, Corrientes, San Juan, Cordoba, Belgrano, Santa Fe and 9 de Julio.
Check in this map where to ride safely: Ciclovias.
And make sure to wear sunscreen 
