Honda Corporation is a world leader in motorcycle production, and the first company in Japan to put their production on the Assembly line.

In 1975, the public was introduced to the new motorcycle company with an inline 4-cylinder engine of medium volume-CB400F, a lighter version of the legendary CB750.

The air-cooled engine had 2 valves per cylinder and developed 37 HP. The motorcycle had a front disc and rear drum brake, and the weight of the motorcycle was 182kg. It was the first-born in the CB400 series.