Paris is a rather bike friendly city, since a whole system to rent bikes everywhere in Paris was promoted in 2007.

To be frank, this system called Velib' is not that easy to use for foreigners, but it is very tempting as you can see all of these bikes right next to your apartments, so feel free to learn more here: VELIB and here again.

You can also rent bikes in Paris. There are several companies doing that, for instance Paris Bike Tour