GAS GAS MC 125 Cross - 2008 Specifications and Reviews

The 2008 GAS GAS MC 125 Cross is a lightweight motocross bike ideal for amateur riders and juniors seeking an entry-level competition machine. Powered by a 124cc liquid-cooled single-cylinder engine with a 6-speed gearbox, it delivers manageable performance with genuine off-road capability. Known for its nimble handling and 92kg chassis, it excels in technical terrain and provides reliable two-stroke power delivery.

2008
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General information

CategoryCross / motocross
Year2008
ModelGAS GAS MC 125 Cross
 
 

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication system2% mixture.
StarterKick
IgnitionDigital CDI Multispark
Fuel systemCarburettor
Bore x stroke45.0 x 40.8 mm (1.8 x 1.6 inches)
Stroke2
Engine typeSingle cylinder
Capacity:124.00 ccm (7.57 cubic inches)

Physical measures and capacities

Wheelbase1,460 mm (57.5 inches)
Seat height945 mm (37.2 inches) If adjustable, lowest setting.
Dry weight92.0 kg (202.8 pounds)

GAS GAS MC 125 Cross dimensions and frame

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions120/80-19
Front tyre dimensions90/90-21
Rear suspensionOne-piece aluminium swing arm, progressive
Front suspension45 mm upside-down fork, 295 mm travel.
Frame typeDeltabox built in cromoly rectangular tubing.

Speed and acceleration

Color optionsRed/grey
Fuel capacity9.50 litres (2.51 gallons)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track60%
City5%
Cornering85%
Daily Riding5%
Touring8%
Passenger0%

Rider Profile

Best ForThis is a pure competition motocross machine best suited to experienced off-road riders comfortable with a peaky two-stroke powerband and no electronic aids.
PurposeBuilt exclusively for motocross track and dirt competition, not for street use or commuting.
Rider FitThe tall 945mm seat height, lightweight 92kg dry chassis, and kickstart demand good physical fitness, strong legs, and confident standing riding technique.
CharacterA sharp, explosive, high-revving 2-stroke that rewards aggressive throttle control and precise body positioning with razor-sharp agility over jumps and berms.
Not Ideal ForThis bike is not suitable for beginners, commuters, passengers, or anyone seeking comfort, touring range, or road-legal practicality.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2008 GAS GAS MC 125 Cross Rider Ergonomics Assessment

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Feet:

At 945mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2008 GAS GAS MC 125 Cross, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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