HONDACB400SF Super Four 2008 - 2009

　　In 2009, the Japanese motorcycle manufacturer launched the CB400SF Super Four, a standard machine part of the CB series in Honda's range that featured the same upgrades received by the 2008 model.

　　The upgrades included a Honda PGM-FI programmed fuel injection system and an idle control valve that improved fuel economy and reliability. The engine featured revised materials and an integrated crankcase cover that reduced engine weight by two kg (4.4 lbs).

　　The VTEC operation was refined, with four valves engaged at 6,300 rpm from first to fifth gear with the throttle wide open, while in sixth gear at 6,750 rpm one exhaust and one intake valve were shut down.

　　Also, the bike featured an independent cylinder ignition timing map, a revised air intake geometry, and a larger stainless steel muffler that contributed to more fuel efficiency. The updated frame rigidity and engine mounting position improved handling.

　　The CB400SF was available in an ABS version that featured three-piston sliding calipers on the front instead of the standard four-piston and a larger 256 mm rear brake disc, while the overall weight was increased by four kg (8.8 lbs) on the standard model and by nine kg (20 lbs) on the ABS version.

　　As for the power figures, the 2009 Honda CB400SF Super Four had the same power specifications as the previous models, with a 399 cc four-stroke four-cylinder liquid-cooled engine 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.