Trials Bikes
2017GAS GAS TXT Racing 125 E4
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The 2017 GAS GAS TXT Racing 125 E4 is a Spanish-built trials bike engineered for competitive and intermediate riders seeking precision handling on technical terrain. Known for its lightweight construction, responsive hydraulic clutch, and advanced suspension geometry with 180mm front and 164mm rear travel, it delivers excellent feedback and control. The bike excels in trial competitions and demanding off-road conditions where agility and brake modulation are paramount.
- Capacity
- 124.8 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 66.0 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
- Designed exclusively for technical trial competition, requiring balance, throttle control, and obstacle negotiation rather than sustained speed.
- Built for
- A razor-sharp, ultra-light two-stroke trials tool that rewards precision and finesse over raw power, with class-leading agility for climbing, hopping, and balancing over obstacles.
- Not ideal for
- This is not suitable for anyone wanting a comfortable commuter, a highway tourer, a passenger-carrying bike, or a machine with meaningful top-end speed.
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
- 0.2273 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.5 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- 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
- 66.0 kg
- Fuel capacity
- 2.50 litres
Chassis & suspension
- Frame
- Chrom-Molybdenum tubular frame
- Front suspension
- TECH with aluminium bar Ø 39
- Rear suspension
- Reiger hydraulic mono shock absorber (2 ways). Rebound and spring pre-load ajustable.
- Front wheel travel
- 180 mm
- Rear wheel travel
- 164 mm
Brakes & wheels
- Front brakes
- Single disc. Floating wave disk, 4-piston caliper
- Front brakes diameter
- 185 mm
- Rear brakes
- Single disc. Wave disc
- Rear brakes diameter
- 150 mm
- Front tyre
- 2.75-21
- Rear tyre
- 4.00-18
Other
- Color options
- Red/white/black
- Comments
- Spanish made bike.
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the GAS GAS TXT Racing 125 E4?
The 2017 GAS GAS TXT Racing 125 E4 has a Capacity of 124.8 ccm (7.62 cubic inches).
What engine power does the GAS GAS TXT Racing 125 E4 have?
The 2017 GAS GAS TXT Racing 125 E4 has a Power of 15.0 HP (11.0 kW).
How many gears does the GAS GAS TXT Racing 125 E4 have?
The 2017 GAS GAS TXT Racing 125 E4 has a Gearbox of 6-speed.
How much does the GAS GAS TXT Racing 125 E4 weigh?
The 2017 GAS GAS TXT Racing 125 E4 has a Dry weight of 66.0 kg (145.5 pounds).
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