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Motocross Bikes

2012GAS GAS MC 125

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The 2012 GAS GAS MC 125 is a two-stroke motocross racer from Spain. Its liquid-cooled 124cc single drives through a six-speed gearbox and chain. A 940 mm seat, 92 kg dry weight and 9.5-litre tank are built for the track.

Capacity
124.0 ccm
Engine
Single, two-stroke
Gearbox
6-speed
Dry weight
92.0 kg
Seat height
940 mm
Power
15.0 HP (11.0 kW)
⇄ Compare with another bike + Add to garage All model years
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
Speed 48Agility 84Comfort 30Off-road 98Touring 10Road manners 15
Off-road & trail98%
Cornering85%
City riding5%
Daily riding5%
Touring8%
Two-up0%
Track90%
Best for
Built purely for closed-course motocross racing and serious off-road competition, not for general transportation.
Built for
A raw, lightweight, high-revving two-stroke racer that rewards aggressive riding with sharp agility and explosive acceleration on the track.
Not ideal for
This is not the right bike for commuting, touring, carrying a passenger, or riders seeking comfort and ease of use.

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 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2012 GAS GAS MC 125, with a cramped knee angle of around 85 degrees and an upright 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
124.0 ccm
Power
15.0 HP (11.0 kW)
Engine type
Single, two-stroke
Power/weight ratio
0.1630 HP/kg (dry)
Bore x stroke
54.0 x 54.5 mm
Cooling system
Liquid
Fuel system
Carburettor
Starting
Kick
Ignition
Kokusan digital CDI Multispark
Lubrication system
2% mixture
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Hydraulic multi-disc
Dimensions & weight
Wheelbase
1475 mm
Seat height
940 mm
Dry weight
92.0 kg
Fuel capacity
9.50 litres
Ground clearance
340 mm
Chassis & suspension
Frame
Deltabox built in chrome molybden rectangular tubing
Front suspension
45 mm upside-down Marzocchi or Ohlins, 295 mm travel
Rear suspension
One-piece aluminium swing arm, progressives system with Ohlins, shock absorber, 320 mm travel
Front wheel travel
295 mm
Rear wheel travel
320 mm
Rake (fork angle)
26.1°
Brakes & wheels
Front brakes
Single disc. with 1-piston calipers
Front brakes diameter
260 mm
Rear brakes
Single disc. with 1-piston calipers
Rear brakes diameter
220 mm
Front tyre
90/90-21
Rear tyre
120/90-18

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 200420102012201620212027
Capacity 124 cc 124 cc 124 cc 125 cc 125 cc 125 cc
Dry weight 92 kg 92 kg 92 kg 92 kg 88 kg 93 kg
Seat height 940 mm 940 mm 940 mm 940 mm 950 mm 956 mm
Fuel capacity 9.5 L 9.5 L 9.5 L 9.5 L 7 L 7.9 L

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

Rider Reviews

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Common questions

What is the engine size of the GAS GAS MC 125?

The 2012 GAS GAS MC 125 has a Capacity of 124.0 ccm (7.57 cubic inches).

What engine power does the GAS GAS MC 125 have?

The 2012 GAS GAS MC 125 has a Power of 15.0 HP (11.0 kW).

How many gears does the GAS GAS MC 125 have?

The 2012 GAS GAS MC 125 has a Gearbox of 6-speed.

How much does the GAS GAS MC 125 weigh?

The 2012 GAS GAS MC 125 has a Dry weight of 92.0 kg (202.8 pounds).

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