At Nørrebro Lokaludvalg you can borrow a carrier bicycle almost for free. Send an e-mail to firstname.lastname@example.org to make an appointment and hear if the carrier bicycle is free. Bring DKK 20 and your passport og driver's license as deposit.
Nørrebro Lokaludvalg is located at Den røde plads.
Read more at Nørrebro Lokaludvalg's website (in Danish).
You can borrow a carrier bicycle for free at Vesterbro Lokaludvalg. Bring picture ID and DKK 500 for deposit, which you'll get back when you return the bicycle.
You can't reserve a bicycle, but call and ask, if there is a bicycle available at phone: +45 82 20 52 80.
Read more at Vesterbro Lokaludvalg's website (in Danish).
You can borrow a carrier bicycle for free at Miljøpunkt Amager
You can borrow a carrier bicycle for free for up to a week at Miljøpunkt Østerbro. You just need to bring picture ID. Read more at their website (in Danish).
At Valby Lokaludvalg you can borrow a carrier bicycle for free. At their website you can see the conditions and see, when the bicycles are available (in Danish)
Wierd and fun bicycles
You can borrow all kinds of bicycles including carrier bicycles at Bicycle Innovation Lab located on Amager at their bicycle library. Read more about the conditions and bicycles at their website.