Only with a key number can a new key be made. This number can be found on the key itself. It is not possible to produce a new key with the number that is on the lock. If there are no matching keys, the key number is sometimes mentioned on the purchase receipt of the bicycle or on the insurance policy when the bicycle is insured. The bicycle shop where the bike was bought may have the key number stored in its system.
If you cannot find the key number on the key itself, take a picture of the entire key and send it to firstname.lastname@example.org or via WhatsApp to 06-20649337. In most cases we will be able to find out the key number based on the photo and advise you on which key to order.