Built around Honda's scooter motorcycle platform, the 2008 Honda SilverWing 400 utilizes a 398 cc (24.3 cu in) liquid-cooled twin, four-stroke layout. In factory specification, peak output is rated at 36.2 HP (26.4 kW) at 8,000 rpm while maximum torque reaches 37 Nm (27.3 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 91 HP per liter and a 1,500 rpm working window between peak torque (6,500 rpm) and peak power (8,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the SilverWing 400 measures 228 kg (503 lbs) dry, translating to a power-to-weight ratio of 0.16 HP/kg (6.3 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,595 mm (62.8 in) wheelbase engineered for planted straight-line stability.
Specific Output
91 HP/L
Power-to-Weight
0.16 HP/kg (6.3 kg/HP)
Power Band Window
6,500–8,000 rpm
Engine
Displacement398.0 ccm (24.29 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsTwin, four-stroke
Power36.2 HP (26.4 kW)) @ 8000 RPM
Torque37.0 Nm (3.8 kgf-m or 27.3 ft.lbs) @ 6500 RPM
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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
