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
Curtiss V-8 motorcycle Curtiss V-8 motorcycle The Curtiss V-8 motorcycle was a V8 engine-powered motorcycle designed and built by aviation and motorcycling pioneer Glenn Curtiss that set an unofficial land speed record of on January 24, 1907. The air-cooled F-head engine was developed for use in dirigibles. The forty horsepower engine was the two carburetor version of the Curtiss Model B-8 aircraft powerplant, one of thirteen engines listed in the May 1908 "Aerial and Cycle Motors" catalog. The engine weighed and was offered for US$1,200 but it did not sell, in spite of the engine's notoriety from the speed record. An eight carburetor