The first NSR600 motorcycles were built by Honda themselves. Honda is a well-established motorcycle manufacturer known for designing and manufacturing their own motorcycles, including the NSR series. The NSR600 was a sportbike produced by Honda in the mid-1980s as part of their NSR series of motorcycles. It featured a two-stroke engine and was designed for racing and high-performance riding. Honda's in-house team of engineers and designers developed and produced the NSR600 motorcycles at their manufacturing facilities.