Supermotos
2010GAS GAS SM 125 Halley
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The 2010 GAS GAS SM 125 Halley is a lightweight supermoto designed for agile urban riders and track enthusiasts seeking nimble handling. Its liquid-cooled two-stroke engine delivers punchy performance in a compact package, while the upside-down forks and hydraulic clutch provide responsive control. Best known for versatility between street and dirt applications, it appeals to riders prioritizing maneuverability over raw power.
- Capacity
- 124.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 99.0 kg
- Seat height
- 945 mm
- Power
- 15.0 HP (11.0 kW)
What’s new for the 2010 GAS GAS SM 125 Halley
vs the 2009| Spec | 2009 | 2010 |
|---|---|---|
| Front brakes | Single disc. 4 pistons caliper | Single disc. 2 pistons caliper |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for flickable, playful supermoto riding on twisty backroads and tight tracks rather than distance or off-road work.
- Built for
- A sharp, lightweight two-stroke supermoto with premium suspension components that rewards an aggressive, engaged riding style.
- Not ideal for
- Not a good fit for riders wanting comfortable long-distance touring, passenger carrying, or serious off-road capability.
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
- 124.0 ccm
- Power
- 15.0 HP (11.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1515 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.5 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Digital CDI Multispark.
- Lubrication system
- By fuel mixture.
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multidisc hydraulically operated.
Dimensions & weight
- Wheelbase
- 1460 mm
- Seat height
- 945 mm
- Dry weight
- 99.0 kg
- Wet weight
- 110.0 kg
- Fuel capacity
- 9.50 litres
Chassis & suspension
- Frame
- Deltabox* made of rectangular profile Cr Mo
- Front suspension
- 41 mm upside-down fork
- Rear suspension
- One-piece aluminium swing arm. Ohlins shock absorber.
- Front wheel travel
- 255 mm
- Rear wheel travel
- 246 mm
Brakes & wheels
- Front brakes
- Single disc. 2 pistons caliper
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 100/80-17
- Rear tyre
- 120/70-17
Other
- Color options
- Black/yellow
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 | 2009 | 2010 |
|---|---|---|
| Capacity | 124 cc | 124 cc |
| Dry weight | 99 kg | 99 kg |
| Seat height | 945 mm | 945 mm |
| Fuel capacity | 9.5 L | 9.5 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the GAS GAS SM 125 Halley?
The 2010 GAS GAS SM 125 Halley has a Capacity of 124.0 ccm (7.57 cubic inches).
What engine power does the GAS GAS SM 125 Halley have?
The 2010 GAS GAS SM 125 Halley has a Power of 15.0 HP (11.0 kW).
How many gears does the GAS GAS SM 125 Halley have?
The 2010 GAS GAS SM 125 Halley has a Gearbox of 6-speed.
How much does the GAS GAS SM 125 Halley weigh?
The 2010 GAS GAS SM 125 Halley has a Dry weight of 99.0 kg (218.3 pounds).
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