Supermotos
2004GAS GAS SM 450
27 fields on record
The 2004 GAS GAS SM 450 is a lightweight supermoto designed for riders seeking nimble handling and street-focused performance. Its 399cc liquid-cooled single-cylinder engine delivers responsive power ideal for urban environments and tight cornering, while the 105kg weight ensures exceptional agility. Best known for its aggressive styling and playful character, it appeals to experienced riders who prioritize maneuverability over raw horsepower.
- Capacity
- 399.0 ccm
- Engine
- Single
- Gearbox
- 6-speed
- Dry weight
- 105.0 kg
- Seat height
- 900 mm
- Power
- 39.9 HP (29.3 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for supermotard fun: sharp cornering, tight tarmac twisties, and flickable city or track riding rather than covering distance.
- Built for
- A punchy, minimalist, race-bred single that rewards aggressive, playful riding with immediate direction changes and strong braking feel from its high-spec suspension and brakes.
- Not ideal for
- Not a good fit for riders wanting long-distance comfort, wind protection, passenger capability, or a smooth, low-maintenance commuter experience.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 399.0 ccm
- Power
- 39.9 HP (29.3 kW)
- Engine type
- Single
- Power/weight ratio
- 0.3800 HP/kg (dry)
- Cooling system
- Liquid
- Fuel system
- Injection
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1475 mm
- Seat height
- 900 mm
- Dry weight
- 105.0 kg
- Fuel capacity
- 9.50 litres
- Ground clearance
- 340 mm
Chassis & suspension
- Frame
- Type deltabox, made of rectangular profile Cr-Mo
- Front suspension
- Marzocchi inverted fork, 45 mm
- Rear suspension
- Progressive system, Ohlins shock absorber.
- Front wheel travel
- 295 mm
- Rear wheel travel
- 320 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 120/60-17
- Rear tyre
- 150/60-17
Other
- Color options
- Red/black/grey
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the GAS GAS SM 450?
The 2004 GAS GAS SM 450 has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the GAS GAS SM 450 have?
The 2004 GAS GAS SM 450 has a Power of 39.9 HP (29.3 kW).
How many gears does the GAS GAS SM 450 have?
The 2004 GAS GAS SM 450 has a Gearbox of 6-speed.
How much does the GAS GAS SM 450 weigh?
The 2004 GAS GAS SM 450 has a Dry weight of 105.0 kg (231.5 pounds).
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