Project 422, an effort to produce a sporty motorcycle with commanding performance, culminated in the 1979 Honda CBX. Since Honda's entry into the United States market, the long series of CB-designated street bikes normally had numerals indicating engine displacement, but this CB was followed by X, for extreme. Even people who cared little about bikes couldn't help noticing the transversely mounted six-cylinder engine, nearly two feet wide, tilting forward 33 degrees, and sprouting a row of exhaust tubing that would make a pipe organ repairman reach for his tuning knife.