Trials Bikes
2020GAS GAS TXT GP 125
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The 2020 GAS GAS TXT GP 125 is a limited-edition trials bike with carbon-fibre parts, made in Spain. Its liquid-cooled 124.8cc two-stroke single makes 15 hp through a six-speed gearbox and chain. A very low 630 mm seat, 66.5 kg dry weight and 2.5-litre tank suit younger competition riders.
- Capacity
- 124.8 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 66.5 kg
- Seat height
- 630 mm
- Power
- 15.0 HP (11.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A dedicated competition trials machine designed purely for tackling technical obstacles at walking pace, not for distance riding or general fun laps.
- Built for
- An ultra-light, high-revving two-stroke trials specialist that rewards precise throttle and clutch finesse over outright horsepower.
- Not ideal for
- This is not the bike for anyone wanting a comfortable seat, sustained speed, highway capability, or a passenger.
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
- 0.2256 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.5 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- HIDRIA double spark ignition CDI
- Lubrication system
- 2-stroke-oil/fuel mixed 1:50
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- GG 1/3 hydraulic-diaphragm-system
Dimensions & weight
- Wheelbase
- 1320 mm
- Overall length
- 2010 mm
- Overall width
- 825 mm
- Overall height
- 1130 mm
- Seat height
- 630 mm
- Dry weight
- 66.5 kg
- Fuel capacity
- 2.50 litres
Chassis & suspension
- Frame
- Chrom-Molybdenum tubular
- Front suspension
- TECH with aluminium bar Ø 39. Rebound, compression, end stroke and spring preload regulation.
- Rear suspension
- ÖHLINS hydraulic mono shock absorber (2 ways). Rebound and spring pre-load ajustable.
- Front wheel travel
- 180 mm
- Rear wheel travel
- 174 mm
Brakes & wheels
- Front brakes
- Single disc. NG WAVE floating, monoblock 4 pistons BRAKTEC caliper
- Front brakes diameter
- 185 mm
- Rear brakes
- Single disc. NG WAVE, autostand system 2 pistons BRAKTEC caliper
- Rear brakes diameter
- 150 mm
- Front tyre
- 2.75-21
- Rear tyre
- 4.00-18
Other
- Color options
- Red/white/black
- Comments
- Various carbon fiber parts. Limited edition. Spanish made 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 | 2017 | 2018 | 2020 | 2021 | 2022 |
|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 66 kg | 67 kg | 67 kg | 67 kg | 65 kg |
| Seat height | 630 mm | 630 mm | 630 mm | 630 mm | 630 mm |
| Fuel capacity | 2.5 L | 2.5 L | 2.5 L | 2.5 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 GP 125?
The 2020 GAS GAS TXT GP 125 has a Capacity of 124.8 ccm (7.62 cubic inches).
What engine power does the GAS GAS TXT GP 125 have?
The 2020 GAS GAS TXT GP 125 has a Power of 15.0 HP (11.0 kW).
How many gears does the GAS GAS TXT GP 125 have?
The 2020 GAS GAS TXT GP 125 has a Gearbox of 6-speed.
How much does the GAS GAS TXT GP 125 weigh?
The 2020 GAS GAS TXT GP 125 has a Dry weight of 66.5 kg (146.6 pounds).
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