Oslo Bysykkel

Oslo Bysykkel ("Oslo City Bike") is the name of a public-private partnership project of Oslo, Norway and one of the outdoor advertising units of Clear Channel Communications. It is a bicycle sharing system that allows renting a bicycle between 06:00 and midnight. You can use the bike for 45 minutes at the time, or keep it longer by paying 5 nok per 15 minutes after the included 45 minutes. You can then keep the bike up to 6 hours and 45 minutes)

There are currently (March 2017) about 140 rental hubs.

Membership in the sharing system costs 299 kr per year for individuals. Besides that, the entire system is financed by advertising sold and managed by Clear Channel Communications. The advertising is displayed on the bikes, on outdoor billboards set up in connection with the bike stalls and standalone billboards in the city centre.

Clear Channel Communications runs similar projects in Barcelona, Zaragoza, and with identical bikes and hub systems. As of 2007, similar schemes are also in effect in other European cities, including JCDecaux's Aix-en-Provence, Rouen, Barcelona (Bicing), Brussels, Lyon (Vélo'v), Nantes (Bicloo), Paris (Vélib), Toulouse, Seville (Sevici), Vienna, Sandnes, and others Pamplona (Cemusa), Copenhagen, OYBike, Call a Bike (Berlin, Frankfurt, Cologne, Stuttgart, Munich, Karlsruhe), Copenhagen/Helsinki/Aarhus (CIOS), and Zaragoza.

...
Wikipedia