 In 1974 Hercules became the first company to offer a Wankel-engined motorcycle for sale to the general public.A prototype was first shown in 1970 at the West Cologne Autumn Motorcycle Show to a mixed reception and the production bike was sold as a Hercules product except in the United Kingdom, where it was marketed as a DKW motorcycle.The W-2000 had a single-rotor air-cooled engine of 294cc displacement that produced 23 hp, later increased to 32 hp.