2011 Honda CB400 Super Four Technical Analysis & Specification Breakdown
Engineered by Honda for the sport motorcycle segment, the 2011 Honda CB400 Super Four relies on a 399 cc (24.4 cu in) liquid-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 52.3 HP (38.2 kW) at 10,500 rpm while maximum torque reaches 38 Nm (28 lb-ft) at 9,500 rpm, transferring power to the rear wheel through a 6-speed gearbox. With a specific output of 131.1 HP per liter and a 1,000 rpm working window between peak torque (9,500 rpm) and peak power (10,500 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the CB400 Super Four measures 194 kg (428 lbs) dry, translating to a power-to-weight ratio of 0.27 HP/kg (3.71 kg per horsepower). Rider ergonomics and chassis geometry center around a 755 mm (29.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,560 mm (61.4 in) wheelbase engineered for planted straight-line stability. The 18-liter (4.8 US gal) fuel tank paired with a rated consumption of 3.23 L/100 km provides an estimated theoretical range of roughly 557 km (346 miles) between fill-ups.
Within MotoLibrary's Honda archive, this model family spans 3 indexed model years from 2011 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
131.1 HP/L
Power-to-Weight
0.27 HP/kg (3.71 kg/HP)
Power Band Window
9,500–10,500 rpm
Theoretical Range
~557 km (346 mi)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Power52.3 HP (38.2 kW)) @ 10500 RPM
Torque38.0 Nm (3.9 kgf-m or 28.0 ft.lbs) @ 9500 RPM
Bore x Stroke55.0 x 42.0 mm (2.2 x 1.7 inches)
Fuel SystemInjection. PGM-FI
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionFull transistor type
LubricationCombined pumping spray
CoolingLiquid
Transmission
Gearbox6-speed
ClutchWet multi-plate coil spring
Performance
Fuel Consumption3.23 litres/100 km (31.0 km/l or 72.82 mpg)
Greenhouse Gases74.9 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Trail90 mm (3.5 inches)
Front SuspensionTelescopic fork
Rear SuspensionSwing arm
Wheelbase1560 mm (61.4 inches)
Ground Clearance130 mm (5.1 inches)
Wheels & Brakes
Front Tyre120/60-ZR17
Rear Tyre160/60-ZR17
Front BrakesDouble disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight194.0 kg (427.7 pounds)
Power/Weight0.2696 HP/kg
Seat Height755 mm (29.7 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
