For cyclists

We kindly ask that all (potential) cyclists first contact the local coordinator for their municipality with any questions. See the municipal subpage for the full contact details – thank you!

Contacts for municipalities/press enquiries

General contact for RADar! team:

Support hotline: +49 69 717139-39
Monday to Thursday, generally 10 a.m.–12 p.m. and 2–5 p.m.
Friday, 9 a.m.–12 p.m.

Email contact:


Constantin Reising

Project coordinator

Janina Zeller

Project coordinator

Liane Hauff

Project coordinator

Climate Alliance | Klima-Bündnis Service

Climate Alliance | Klima-Bündnis der europäischen Städte mit indigenen Völkern der Regenwälder Services GmbH
Galvanistr. 28
60486 Frankfurt am Main
Fax +49 69 717139-39




We also inform on innovations and other matters worth knowing about RADar! in our CITY CYCLING newsletter. Simply send a brief message to and we’ll gladly add you to our mailing list to receive updates about CITY CYCLING and the RADar! reporting platform. The newsletter is mostly relevant for (potential) local coordinators.