Segment: Naked / Road
Production years: 2007, 2008
In 2008, the Japanese motorcycle manufacturer introduced the CB400SF Super Four, a standard machine that was suitable for both inexperienced and young riders who wanted an introductory bike, as well as for the more seasoned ones who wanted a fuel-efficient and agile commuter.
The 2008 model introduced several upgrades, such as 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 bike was available with optional ABS 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.
In the power department, the 2008 Honda CB400SF Super Four had its heartbeat set by 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.
engine specs | Type: | liquid-cooled, four-stroke, transverse four cylinders | Displacement: | 399 cm3 | Bore X Stroke: | 2.2x1.7 in OR 56 mm | Compression Ratio: | 11.3:1 | Horsepower: | 53/10000 KW(hp)/RPM | Torque: | 30/7500 lb-ft/RPM OR 41/7500 Nm/RPM | Fuel System: | 4x32mm carburetors |
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transmission specs | Gearbox: | 5-speed, manual | Clutch: | - | Primary Drive: | - | Final Drive: | chain |
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chassis specs | Frame: | steel | Front Suspension: | telescopic fork | Rear Suspension: | dual shock absorbers | Front Brake: | dual 296mm discs, 4-piston calipers | Rear Brake: | single 240mm disc, 2-piston caliper |
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dimension specs | Overall Length: | - | Overall Width: | - | Seat Height: | - | Wheelbase: | - | Ground Clearance: | - | Weight: | 375 lbs OR 170 kg | Fuel Capacity: | 2.9 gallons OR 11.0 L |
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tyres specs | Front: | 110/80 - 18 | Rear: | 140/70 - 17 |
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power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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