In 1981, the demand for an inline four-cylinder engine motorcycle was pretty high, so Honda decided to address the demand with the introduction of the CBX400F. The CBX400F was a naked motorcycle manufactured by Honda from 1981 to 1984.
The bike featured a compact body like the CB400 Four model, a meter panel like the one used by the CB750F model, forged separated handles, forged pedals, an X-shaped four-one-two exhaust system, hollow aluminum swingarm with a Pro-Link suspension, and ventilated brake discs.
In the long run, the bike, with its sophistication and high performance had a very great appeal on the market and featured the highest sales among the sports models at the time. Also, in 1982, Honda released another model called the CBX400F integra, and for the first time in Japan, it was equipped with a fairing and a cancellation mechanism for turn signals.
For suspension, the bike packed a 35 mm Kayaba fork on the front and a single air shock absorber on the rear, while the stopping power was handled by a 229 mm disc with a hydraulic caliper on the front wheel and a 229 mm disc with a hydraulic caliper on the rear wheel.
In the power department, the 1981 Honda CBX400F had its soul brought to life by a 399cc four-stroke four-cylinder air-cooled engine fed by four Keihin carburetors that helped deliver an output power of 48 hp with maximum strength at 10,500 rpm and 33 Nm (24 lb-ft) of torque available at 9,000 rpm.