14 August. Friday 2026
GAS GAS TXT Pro 125 - 2011 Specifications and Reviews
The 2011 GAS GAS TXT Pro 125 is a lightweight trial motorcycle designed for competitive and recreational riders seeking technical off-road performance. Its liquid-cooled 124cc two-stroke engine delivers agile handling and precise control through tight terrain, while the advanced Marzocchi suspension and hydraulic clutch provide the responsiveness trial riding demands. Best known for its nimble maneuverability and reliability in obstacle courses, this model suits intermediate to advanced trial enthusiasts.
General information | |
| Category | Trial |
| Year | 2011 |
| Model | GAS GAS TXT Pro 125 |
Engine and Transmission Specifications | |
| Clutch | GG 1/3 hydraulic-diaphragm-system |
| Transmission type,final drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | 2-stroke-oil/fuel mixed 1:50 |
| Ignition | CDI |
| Fuel system | Carburettor. Dell´Orto PHBL26BS - Intake by reed valve |
| Bore x stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 124.80 ccm (7.62 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Wheels | Light aluminium spoke rim |
| Rear brakes diameter | 150 mm (5.9 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 185 mm (7.3 inches) |
| Front brakes | Single disc. Floating disk |
| Rear tyre dimensions | 4.00-18 |
| Front tyre dimensions | 2.75-21 |
| Rear suspension travel | 164 mm (6.5 inches) |
| Rear suspension | Aluminium swingarrm, Progressive linkage system. Sachs hydraulic mono shock absorber |
| Front suspension travel | 177 mm (7.0 inches) |
| Front suspension | Marzocchi 40 mm Aluminium Right-Sight-Up |
| Frame type | Chrom-Molybdenum tubular frame |
Physical measures and capacities | |
| Fuel capacity | 2.50 litres (0.66 gallons) |
| Wheelbase | 1,330 mm (52.4 inches) |
| Overall width | 825 mm (32.5 inches) |
| Overall length | 2,045 mm (80.5 inches) |
| Overall height | 1,130 mm (44.5 inches) |
| Seat height | 650 mm (25.6 inches) If adjustable, lowest setting. |
| Dry weight | 66.0 kg (145.5 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | Red/white/black |
| Starter | Kick |
Performance Profile & Rider Fit
Best For
Track10%
City5%
Cornering60%
Daily Riding5%
Touring2%
Passenger0%
Rider Profile
| Best For | This is a specialist machine best suited to skilled or dedicated novice trials riders rather than someone wanting a first bike of any kind. |
| Purpose | Built purely for competitive and recreational observed trials riding, tackling rocks, logs, steep slopes and technical obstacles at walking pace. |
| Rider Fit | Its featherweight 66kg dry mass and low seat height make it extremely easy to manhandle, hop, and balance, though standing riding posture demands core strength and balance skills. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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