Roehr Motorcycle Company hp 936cc 60° 4-stroke V-twin manufactured by US Highland was revealed in 2004. Roehr introduced the V-Roehr production motorcycle in March 2007. The bike was to be powered by a 180 hp supercharged Harley Davidson 1250 cc "Revolution" engine. Production of the first 50 bikes was scheduled to begin in 2008. Roehr Motorcycle Company Roehr Motorcycle Company was a US motorcycle manufacturer based Gurnee, Illinois. It closed down in 2012. In 1995 Walter Roehrich began construction of the 500 cc two stroke v-twin motorcycle, using Yamaha YZ250 engine parts on a prototype crankcase. The result was the 115 hp Roehr
Mars (motorcycle) girder fork and recirculating lubrication system in the engine, was made in 1928. Despite being called the "White Mars", the motorcycles were also available in red and green. Mars (motorcycle) Mars was a manufacturer in Nürnberg, Germany founded in 1873 that manufactured motorcycles in various periods from 1903 until 1958. Production was interrupted variously by the First World War, hyperinflation in the 1920s and the Second World War. When Mars ceased production for the final time in 1958, production of the 50 cc Monza Super Sport model was taken over by Gritzner-Kayser AG under its Gritzner brand. The most famous