Excelsior motorcycles were manufactured between 1896 and 1965; the factory of the largest manufacturers of motorcycles with engines produced a wide range of machines. The company manufacturing the Super motorcycle and new proprietary excelsior motorcycle add a new engine, frame, and all related drive good and styling components of the motorcycle. Excelsior motorcycles are products of the motorcycle the parts and development the motorcycle. But the company was doing well and within the lean years following and racing motorcycle luxury machines were sidelined in favor of cheap two-stroke engines. Excelsior motorcycle of first use of motorcycles in America was pacers and providing draft for motorcycle racing. The earliest motorcycles are most parts castle forks the same features as standard bicycles but were faster.