Trials Bikes

2025GAS GAS TXT Racing 125

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The GAS GAS Txt Racing 125 is a lightweight trials bike designed for competitive and recreational riders seeking precision handling in technical terrain. Known for its nimble maneuverability and advanced suspension geometry, it excels in rocky and challenging environments where low weight and responsive control are essential. The 125cc powerplant delivers adequate torque for trials riding while maintaining the bike's exceptional agility.

Capacity: 128.8 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 66.7 kg
Seat height: 630 mm
Power: 15.0 HP (11.0 kW)

⇄ Compare with another bike All model years

What’s new for the 2025 GAS GAS TXT Racing 125

vs the 2022

Spec	2022	2025
Engine capacity	124.8 ccm (7.62 cubic inches)	128.8 ccm (7.86 cubic inches)
Front suspension	TECH with aluminium bar Ã˜ 39	TECH aluminium bar 39
Rear suspension	REIGER hydraulic shock absorber with linkage	TECH hydraulic damper with linkage, 2-way adjustable
Front brakes	Single disc. Monoblock 4 pistons BRAKTEC caliper, NG WAVE floating	Single disc. 4-piston caliper
Rear brakes	Single disc. 2 pistons BRAKTEC caliper, autostand system, NG WAVE	Single disc. 2-piston caliper
Compression	—	11.8:1

Other years 2014 2015 2016 2017 2018 2019 2020 2021 2022 2025

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail95%

Cornering60%

City riding15%

Daily riding10%

Touring5%

Two-up0%

Track10%

Best for: Built purely for competitive and recreational trials riding, tackling rocks, logs, steps and tight technical sections at very low speeds rather than for any kind of conventional riding.
Built for: A featherweight, highly responsive two-stroke trials tool with razor-sharp steering geometry and a peaky powerband tuned for control rather than outright speed.
Not ideal for: This bike is not suitable for highway riding, commuting, carrying passengers, or anyone wanting comfort, storage, or sustained speed.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Full specifications

Engine

Capacity: 128.8 ccm
Power: 15.0 HP (11.0 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.2249 HP/kg (dry)
Bore x stroke: 54.0 x 54.5 mm
Compression: 11.8:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: Hidria ECU

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: BRAKTEC hydraulics - diaphragm GG 1/3
Chain size: 520

Dimensions & weight

Wheelbase: 1320 mm
Overall length: 2010 mm
Overall width: 825 mm
Overall height: 1130 mm
Seat height: 630 mm
Dry weight: 66.7 kg
Fuel capacity: 2.40 litres
Ground clearance: 325 mm

Chassis & suspension

Frame: 25CrMo4 steel central-tube
Front suspension: TECH aluminium bar 39
Rear suspension: TECH hydraulic damper with linkage, 2-way adjustable
Front wheel travel: 160 mm
Rear wheel travel: 174 mm
Rake (fork angle): 23.0°

Brakes & wheels

Front brakes: Single disc. 4-piston caliper
Rear brakes: Single disc. 2-piston caliper

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.

What changed, year to year

Differences highlighted

Specification	2014	2016	2019	2021	2025
Capacity	125 cc	125 cc	125 cc	125 cc	129 cc
Dry weight	66 kg	66 kg	66 kg	67 kg	67 kg
Seat height	650 mm	650 mm	650 mm	630 mm	630 mm
Fuel capacity	2.5 L	2.5 L	2.5 L	2.4 L	2.4 L