User Rating: /5 · No user ratings yet✓ Your rating was saved
MotoLibrary Score
43/100Commuter
Power
47 HP
Torque
43 Nm
Engine
399 ccm
Technical Overview
2002 GAS GAS SM 400 FSE Technical Analysis & Specification Breakdown
Positioned in GAS GAS's super motard motorcycle lineup, the 2002 GAS GAS SM 400 FSE utilizes a 399 cc (24.4 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 47 HP (34.3 kW) at 9,940 rpm while maximum torque reaches 43.2 Nm (31.8 lb-ft) at 6,570 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 117.8 HP per liter and a 3,370 rpm working window between peak torque (6,570 rpm) and peak power (9,940 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
Rider ergonomics and chassis geometry center around a 900 mm (35.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,475 mm (58.1 in) wheelbase engineered for balanced agility and highway composure. The 9.5-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
117.8 HP/L
Power Band Window
6,570–9,940 rpm
Standover Height
900 mm (35.4 in)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power47.0 HP (34.3 kW)) @ 9940 RPM
Torque43.2 Nm (4.4 kgf-m or 31.8 ft.lbs) @ 6570 RPM
Bore x Stroke90.0 x 62.6 mm (3.5 x 2.5 inches)
Fuel SystemCarburettor
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Front Travel295 mm (11.6 inches)
Rear Travel320 mm (12.6 inches)
Wheelbase1475 mm (58.1 inches)
Ground Clearance290 mm (11.4 inches)
Wheels & Brakes
Front Tyre120/60-17
Rear Tyre150/60-17
Front BrakesSingle disc
Front Brake Ø310 mm (12.2 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Seat Height900 mm (35.4 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.
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.
