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
Motorcycle wheel America were available with alloy wheels as an option. Italian manufacturer Fantic produce a step-through moped named 'Roma' with cast wheels as standard specification in 1975. The Yamaha RD400C sold in 1976 was the first motorcycle by a major manufacturer to be fitted with cast wheels. The cast wheels weighed more than the spoked wheels fitted to its RD350 predecessor. Honda began offering their Comstar composite wheels in 1977, marking the first time a manufacturer had included tubeless tires on a production motorcycle. At the same time as Honda's Comstar, Dawson Harmsworth firm in Sheffield, England produced a similar composite