Motocross Bikes
2025GAS GAS MC 125
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The 2025 GAS GAS MC 125 is a lightweight 124.8cc two-stroke motocross bike designed for young riders and beginners entering competitive off-road racing. Featuring a 40 horsepower liquid-cooled engine with modern Keihin fuel injection and a six-speed transmission, it delivers responsive power delivery ideal for developing riding skills. Known for its agile handling and affordable entry into serious motocross competition, the MC 125 combines proven performance with reliability.
- Capacity
- 124.8 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 92.5 kg
- Seat height
- 956 mm
- Power
- Not on record
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What’s new for the 2025 GAS GAS MC 125
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Front suspension | 45 mm upside-down Marzocchi* fork. Upside-down Öhlins* fork | WP XACT-USD (AER), 48 mm |
| Rear suspension | One-piece aluminium swing arm, progressives system with Öhlins, shock absorber. | WP XACT Monoshock with linkage |
| Front brakes | Double disc | Single disc |
Other years
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross and off-road competition, not for street use, commuting, or general recreation.
- Built for
- A raw, explosive, and razor-sharp machine that rewards aggressive input with incredible agility and acceleration on rough terrain.
- Not ideal for
- Not suitable for beginners, passengers, daily commuting, or anyone seeking comfort, touring range, or road-legal usability.
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
- 124.8 ccm
- Engine type
- Single, two-stroke
- Bore x stroke
- 54.0 x 54.5 mm
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Vitesco Technologies EMS
- Power
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- DS wet multi-disc clutch, Braktec hydraulics
Dimensions & weight
- Wheelbase
- 1493 mm
- Seat height
- 956 mm
- Dry weight
- 92.5 kg
- Fuel capacity
- 7.90 litres
- Ground clearance
- 354 mm
Chassis & suspension
- Frame
- Central double-cradle-type 25CrMo4 steel.
- Front suspension
- WP XACT-USD (AER), 48 mm
- Rear suspension
- WP XACT Monoshock with linkage
- Front wheel travel
- 310 mm
- Rear wheel travel
- 300 mm
- Rake (fork angle)
- 26.1°
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Single disc
Other
- Color options
- Red/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 | 2004 | 2010 | 2016 | 2021 | 2025 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 124 cc | 124 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 92 kg | 92 kg | 92 kg | 88 kg | 93 kg | 93 kg |
| Seat height | 940 mm | 940 mm | 940 mm | 950 mm | 956 mm | 956 mm |
| Fuel capacity | 9.5 L | 9.5 L | 9.5 L | 7 L | 7.9 L | 7.9 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 MC 125?
The 2025 GAS GAS MC 125 has a Capacity of 124.8 ccm (7.62 cubic inches).
How many gears does the GAS GAS MC 125 have?
The 2025 GAS GAS MC 125 has a Gearbox of 6-speed.
How much does the GAS GAS MC 125 weigh?
The 2025 GAS GAS MC 125 has a Dry weight of 92.5 kg (203.9 pounds).
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