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
Tornax Tornax Tornax was a motorcycle manufacturer in Wuppertal, Germany. Tornax built its first motorcycle in 1926. This was the model I-26, which has a 600 cc single-cylinder side-valve engine imported from JAP in London, England producing 15 bhp. For the remainder of the 1920s all Tornax models featured side-valve and overhead valve (OHV) JAP engines of 500, 550 and 600 cc, apart from the V-28 in 1928 whose 600 cc side-valve engine was supplied by the German engine manufacturer Columbus in Bad Homburg. In 1930 Tornax produced its first twin-cylinder model, the III-30, which had a side-valve 1000 cc V-twin