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
Ossa (motorcycle) in the 2011 FIM Trials world championship, with factory sponsored rider Jeroni Fajardo finishing the season in fifth place. Yankee (motorcycle) Ossa (motorcycle) Ossa is a Spanish motorcycle manufacturer which was active from 1924 to 1982 and reborn in 2010. Founded by Manuel Giró, an industrialist from Barcelona, Ossa was best known for lightweight, two-stroke-engined bikes used in observed trials, motocross and enduro. The company was known originally as "Orpheo Sincronic Sociedad Anónima (O.S.S.A.)" and was later renamed "Maquinaria Cinematográfica, S.A.". In 2010, the Ossa brand was reborn when the trademark was purchased and a new company began producing motorcycles.