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
Vento (motorcycle manufacturer) Yamaha, Suzuki, Honda and Kawasaki combined. Vento products were approved by the National Highway Traffic Safety Administration (United States Department of Transportation), and certified by both the United States Environmental Protection Agency and the California Air Resources Board, meeting the emission regulations. Vento motorcycles have somewhat bulky bodies which resemble larger cruisers made by other manufacturers, but their V-twin 250 cc engines are comparatively small. Though large, the Vento motorcycles are not particularly heavy—typically around 375 pounds. Vento (motorcycle manufacturer) Vento was a motorcycle, scooter and ATV manufacturer from the United States. The name of the company is Italian for