At the heart of the 2002 Suzuki Inazuma 400 naked motorcycle, Suzuki features a 399 cc (24.4 cu in) in-line four, four-stroke configuration. In factory specification, peak output is rated at 52 HP (38 kW) at 11,000 rpm while maximum torque reaches 36 Nm (26.6 lb-ft) at 9,500 rpm, transferring power to the rear wheel through a 6-speed gearbox. With a specific output of 130.3 HP per liter and a 1,500 rpm working window between peak torque (9,500 rpm) and peak power (11,000 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 Inazuma 400 measures 187 kg (412 lbs) dry, translating to a power-to-weight ratio of 0.28 HP/kg (3.6 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,460 mm (57.5 in) wheelbase engineered for balanced agility and highway composure. The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
130.3 HP/L
Power-to-Weight
0.28 HP/kg (3.6 kg/HP)
Power Band Window
9,500–11,000 rpm
Standover Height
760 mm (29.9 in)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Power52.0 HP (38.0 kW)) @ 11000 RPM
Torque36.0 Nm (3.7 kgf-m or 26.6 ft.lbs) @ 9500 RPM
Compression11.2:1
Bore x Stroke52.0 x 47.0 mm (2.0 x 1.9 inches)
Valves/Cylinder4
Fuel SystemCarburettor
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
Transmission
Gearbox6-speed
Chassis
Wheelbase1460 mm (57.5 inches)
Ground Clearance125 mm (4.9 inches)
Wheels & Brakes
Front Tyre120/70-ZR17 58W
Rear Tyre170/60-ZR17 72W
Front BrakesDual disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight187.0 kg (412.3 pounds)
Power/Weight0.2781 HP/kg
Seat Height760 mm (29.9 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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
