Trials Bikes
2015GAS GAS TXT Racing 125
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The 2015 GAS GAS TXT Racing 125 is a Spanish-made trials bike with a small two-stroke engine. Its liquid-cooled 125cc single drives a six-speed gearbox and chain. A 650 mm seat and 66 kg dry weight make it a forgiving choice for learning technical trials.
- Capacity
- 125.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 66.0 kg
- Seat height
- 650 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 observed trials riding, tackling extreme low-speed technical obstacles rather than any form of transport or road use.
- Built for
- An ultra-light, razor-responsive two-stroke trials iron built for pinpoint control, explosive low-end grunt, and instant direction changes over rocks and obstacles.
- Not ideal for
- This bike is entirely unsuitable for anyone wanting a comfortable, fast, or practical machine for road, touring, or passenger use.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 125.0 ccm
- Power
- 15.0 HP (11.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.2273 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.5 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- CDI digital magnetic flywheel
- Lubrication system
- 2.5 % Mixture
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- GG 1/3 hydraulic-diaphragm-system
Dimensions & weight
- Wheelbase
- 1325 mm
- Overall length
- 2045 mm
- Overall width
- 825 mm
- Overall height
- 1130 mm
- Seat height
- 650 mm
- Dry weight
- 66.0 kg
- Fuel capacity
- 2.50 litres
- Ground clearance
- 325 mm
Chassis & suspension
- Frame
- Chrom-Molybdenum tubular frame
- Front suspension
- Marzocchi 40 mm Aluminium Right-Sight-Up. Adjustable compression and rebound.
- Rear suspension
- Reiger (2-way) hydraulic mono shock absorber.
- Front wheel travel
- 177 mm
- Rear wheel travel
- 164 mm
- Rake (fork angle)
- 23.0°
Brakes & wheels
- Front brakes
- Single disc. Floating, 4-piston
- Front brakes diameter
- 185 mm
- Rear brakes
- Single disc. 2-piston
- Rear brakes diameter
- 150 mm
- Front tyre
- 2.75-21
- Rear tyre
- 4.00-18
Other
- Color options
- Red/black/white
- Comments
- Spanish bike.
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 | 2014 | 2015 | 2016 | 2019 | 2021 | 2025 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 66 kg | 66 kg | 66 kg | 66 kg | 67 kg | 67 kg |
| Seat height | 650 mm | 650 mm | 650 mm | 650 mm | 630 mm | 630 mm |
| Fuel capacity | 2.5 L | 2.5 L | 2.5 L | 2.5 L | 2.4 L | 2.4 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 Racing 125?
The 2015 GAS GAS TXT Racing 125 has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the GAS GAS TXT Racing 125 have?
The 2015 GAS GAS TXT Racing 125 has a Power of 15.0 HP (11.0 kW).
How many gears does the GAS GAS TXT Racing 125 have?
The 2015 GAS GAS TXT Racing 125 has a Gearbox of 6-speed.
How much does the GAS GAS TXT Racing 125 weigh?
The 2015 GAS GAS TXT Racing 125 has a Dry weight of 66.0 kg (145.5 pounds).
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