Københavns Cykler, 11 Reventlowsgade
Probably the oldest as well as the largest bike rental firm in the city, Rent a Bike Copenhagen operates from two different shops in the city. Københavns Cykler on Reventlowsgade (next to platform 12 of the Central Station) and Østerport Cykler, which can be found at Oslo Plads 10, right next to Østerport Station's platform 13. As well as renting out all kinds of bikes, from 3-speed touring bikes to tandems and mountain bikes, both shops also sell and repair cycles. You can also rent trailers, bags and child seats here, and are sure to find friendly advice to help you on your way.