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Supermotos

2004GAS GAS SM 250

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The 2004 GAS GAS SM 250 is a lightweight supermoto designed for riders seeking nimble street performance and playful handling characteristics. Its liquid-cooled 250cc single-cylinder engine and compact 101kg chassis make it ideal for urban commuting and spirited riding. Known for its agility and accessible seat height, it appeals to intermediate riders transitioning to street-focused motorcycles.

Capacity
250.0 ccm
Engine
Single
Gearbox
6-speed
Dry weight
101.0 kg
Seat height
940 mm
Power
25.0 HP (18.4 kW)
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2004 GAS GAS SM 250

vs the 2003
Spec20032004
Power 49.8 HP (36.6 kW) 25.0 HP (18.4 kW)
Torque 45.6 Nm (4.6 kgf-m or 33.6 ft.lbs) not listed
Seat height 900 mm (35.4 inches) 940 mm (37.0 inches)
Other years 2002 2003 2004

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 45Agility 92Comfort 40Off-road 30Touring 20Road manners 78
Off-road & trail30%
Cornering95%
City riding65%
Daily riding40%
Touring15%
Two-up20%
Track75%
Best for
Built for supermotard thrills, tight cornering, and flickable fun on twisty tarmac rather than covering long distances.
Built for
A sharp, playful, high-revving single-cylinder machine that rewards aggressive riding and quick direction changes.
Not ideal for
Not the right choice for riders wanting a comfortable, low-maintenance, long-distance touring companion.

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 us
At 940mm, a rider of 175cm with a 79cm (estimated) inseam will not reach the ground comfortably on the 2004 GAS GAS SM 250, with a stretched knee angle of around 160 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine
Capacity
250.0 ccm
Power
25.0 HP (18.4 kW)
Engine type
Single
Power/weight ratio
0.2475 HP/kg (dry)
Bore x stroke
66.4 x 72.0 mm
Cooling system
Liquid
Fuel system
Carburettor
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Dimensions & weight
Wheelbase
1475 mm
Seat height
940 mm
Dry weight
101.0 kg
Fuel capacity
9.50 litres
Ground clearance
340 mm
Chassis & suspension
Frame
TType deltabox, made of rectangular profile Cr-Mo
Front suspension
Marzocchi inverted fork, 50 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/grey/black

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 200220032004
Capacity 249 cc 249 cc 250 cc
Dry weight 101 kg 101 kg 101 kg
Seat height 900 mm 900 mm 940 mm
Fuel capacity 9.5 L 9.5 L 9.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the GAS GAS SM 250?

The 2004 GAS GAS SM 250 has a Capacity of 250.0 ccm (15.26 cubic inches).

What engine power does the GAS GAS SM 250 have?

The 2004 GAS GAS SM 250 has a Power of 25.0 HP (18.4 kW).

How many gears does the GAS GAS SM 250 have?

The 2004 GAS GAS SM 250 has a Gearbox of 6-speed.

How much does the GAS GAS SM 250 weigh?

The 2004 GAS GAS SM 250 has a Dry weight of 101.0 kg (222.7 pounds).

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