Riding as many bike kilometers as possible within 21 days as a team – to this 20 colleagues swapped the car and the train for the bike and cycled 5,556 km, covering a distance from Berlin to Mongolia. The »City Cycling« campaign is running throughout Germany to encourage people to rethink their ways. 80 percent of all households own a bicycle, but rarely use it. In a team the incentive is much higher. In an app, the kilometers ridden can be entered or tours can be recorded. These recorded routes are analysed anonymously by the TU Dresden and made available to the local authorities in order to optimize the cycling infrastructure. Thus, the possibilities for cycling should be improved bit by bit. For a better climate, for a good balance to the daily work routine and for the team spirit among colleagues.