Trials Bikes
2005GAS GAS TXT Pro 125
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The 2005 GAS GAS TXT Pro 125 is a competition trials bike for younger and lighter riders. Its liquid-cooled 124.8cc two-stroke single drives through a six-speed gearbox and chain. With a low 665 mm seat, a 69 kg dry weight and a 3-litre tank, it is made for slow, precise riding over obstacles.
- Capacity
- 124.8 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 69.0 kg
- Seat height
- 665 mm
- Power
- 15.0 HP (11.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for competitive and recreational observed trials riding, tackling rocks, logs, steep slopes and technical obstacles at walking pace.
- Built for
- A featherlight, razor-responsive two-stroke tool designed for tight throttle control and instant direction changes rather than outright speed or comfort.
- Not ideal for
- This is not the bike for anyone wanting to ride on the road, cover distance, carry a passenger, or sit down for long periods.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 124.8 ccm
- Power
- 15.0 HP (11.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.2174 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.5 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- CDI Kokusan, digital magnetic flywheel.
- Lubrication system
- Engine oil continuous with bypass.
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Command hidrulic of 1/3 discs progressif variable with diafragm of Gas Gas* (Patented)
Dimensions & weight
- Wheelbase
- 1330 mm
- Overall length
- 2045 mm
- Overall width
- 825 mm
- Overall height
- 1130 mm
- Seat height
- 665 mm
- Dry weight
- 69.0 kg
- Fuel capacity
- 3.00 litres
Chassis & suspension
- Frame
- Eliptic profile in CrMo.
- Front suspension
- Marzocchi telehydrailc fork, 38 mm
- Rear suspension
- Variable progressive system
- Front wheel travel
- 177 mm
- Rear wheel travel
- 164 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 185 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 150 mm
- Front tyre
- 2.75-21
- Rear tyre
- 4.00-18
Other
- Color options
- Yellow
Specs last verified against published sources: .
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 | 2005 | 2009 | 2011 | 2014 | 2016 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 69 kg | 69 kg | 69 kg | 66 kg | 67 kg | 66 kg |
| Seat height | 665 mm | 665 mm | 665 mm | 650 mm | 650 mm | 630 mm |
| Fuel capacity | 3 L | 3 L | 3 L | 2.5 L | 2.5 L | 2.5 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 TXT Pro 125?
The 2005 GAS GAS TXT Pro 125 has a Capacity of 124.8 ccm (7.62 cubic inches).
What engine power does the GAS GAS TXT Pro 125 have?
The 2005 GAS GAS TXT Pro 125 has a Power of 15.0 HP (11.0 kW).
How many gears does the GAS GAS TXT Pro 125 have?
The 2005 GAS GAS TXT Pro 125 has a Gearbox of 6-speed.
How much does the GAS GAS TXT Pro 125 weigh?
The 2005 GAS GAS TXT Pro 125 has a Dry weight of 69.0 kg (152.1 pounds).
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