Brennabor-Werke AG (previously Brennabor-Werke Gebr. Reichstein) was a German manufacturer of infant buggies, bicycles, motorcycles and, for two decades, of powered motor vehicles. The factory in Brandenburg an der Havel was founded by three brothers Reichstein in 1871. They started bicycle production as early as 1881. The bicycles were branded with the Brennabor name from 1892. The company operated until 1945.