 One of these products were Sachs' coaster brakes, which were traditionally manufactured by Sturmey-Archer.Sparta became the Dutch importer of ATB and racing bicycles made by Sachs' subsidiary company Hercules by late 1989.In September 1999 Sparta stopped the production of the Spartamet, as bicycles with electrical auxiliary motors replaced the need of bicycles such as the Spartamet, which required fuel.