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
American Historic Racing Motorcycle Association American Historic Racing Motorcycle Association The American Historic Racing Motorcycle Association (AHRMA) is a vintage motorcycle racing origination that puts on mostly motorcross races, but also holds road racing, dirt flat track, and trials events. The AHRMA was formed in 1984 by Robert Iannucci and Jeffrey Elghanayan as a private business. In 1989 it was reorganized as a member owned non profit organization. During the 70s and 80s groups of riders began emerging around the nation organizing vintage motorcycle racing events. This started primarily with vintage roadracing clubs who were then joined by motocross, trials, dirt track and concours enthusiasts.