HONDA CB400SF Super Four (1998-1999) Specs, Performance & Photos

The Honda CB400SF Super Four was a standard motorcycle manufactured by the Japanese motorcycle manufacturer in 1992 at the Kumamoto plant that embodied the typical Universal Japanese Motorcycle (UJM) produced in the 1960s.

First introduced in 1991 at the 29th Tokyo Motor Show, the bike was a 400cc version of the CB1000 Super Four with an engine similar to the one used by the early CB-1 model, tilted backward for a more erect cylinder bank.

In 1999, Honda launched the CB400SF Super Four, a standard motorcycle in its eighth production year that came with major engine improvements through the use of Honda's VTEC system.

The engine featured four valves per cylinder, while below 6,750 rpm, one intake and one exhaust valves were disabled, and over 6,750 rpm, the remaining two valves were set in motion, resulting in improved low and mid-range power and efficiency.

Also, the model featured a lightweight aluminum muffler, a 40 mm shorter wheelbase, a 10 mm longer engine mount position, and the front suspension borrowed from the CBR900RR, which improved handling. All changes brought upon the bike reduced the overall weight by six kg (13 lbs).

As for power, the 1999 Honda CB400SF Super Four was still powered by the 399cc four-stroke four-cylinder liquid-cooled engine used from its debut that delivered an output power of 53 hp with maximum strength at 10,000 rpm and 40 Nm (30 lb-ft) of torque available at 7,500 rpm.