Forget riding the U or S Bann and the hop-on, hop-off buses! Berlin is a bike-friendly city, so…read moreusing Call A Bike is a no-brainer. You can rent by the hour or the day and get around easily around the city at your own pace. Registration for first time users is a bit of a pain using the touch screen, but once completed, off you go. A chip and pin credit card is not required to rent a bike, a definite plus. There are plenty of rental stations around the city, so there's no excuse not to use their service.