Time Out says
The city of Zurich gives out bikes free! Just leave a CHF 20 deposit at a Züri rollt container. Two of them are open all year round.
Leave a CHF 20 deposit at one of the Züri rollt containers and enjoy the city on two wheels. You might want to cycle down part of either side of the lake or just use the bike to get around Zurich a bit quicker. There are several rental stations in town, but only two of them are open all year round.
Hauptbahnhof (Landesmuseum exit)
|Transport:||Tram 4, 11, 13, 17; S-Bahn|
|Price:||Free with CHF 20 deposit|