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
Norton Motorcycle Company When major shareholders started to leave Norton in 1953, the company declined and Associated Motor Cycles bought the shares. Although motorcycle sales went through a recession in the 1950s, and Norton Motors Ltd was only a small manufacturer, Norton sales flourished. A series of Norton Dominator Twins of 500 cc, then 600 cc, then 650 cc and then the 750 cc Norton Atlas kept sales buoyant, especially with sales to the United States. In 1968, the new 750 cc Norton Commando Model appeared, with the engine/gearbox/swingarm unit isolastically insulated from the frame with a series of rubber mountings. This kept