Juncker, Dutch motorized bicycle. See also: Delft-Juncker
Juncker was one of Dutch bicycle factories, which was established in 1898 in Ruwielen, Apeldoorn. They started to produce bicycles in 1924. The Juncker bikes were sold in Europe, USA, and Asia, including in Indonesia. In 1968 Juncker was taken over by Gazelle, together with Locomotief and Simplex companies.
Juncker Ruwielen in 1925