14 August. Friday 2026
GAS GAS TXT GP 125 - 2017 Specifications and Reviews
The 2017 GAS GAS TXT GP 125 is a lightweight Spanish-made trials bike designed for beginners and amateur riders seeking to develop technical riding skills. Known for its nimble handling and minimalist design, it features carbon fiber components and a compact 66kg frame ideal for learners mastering balance and precision. The bike's low seat height and responsive braking system make it accessible for younger or shorter riders.
General information | |
| Category | Trial |
| Year | 2017 |
| Model | GAS GAS TXT GP 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 | HIDRIA double spark ignition CDI |
| Fuel system | Carburettor. Keihin PWK 28 |
| Bore x Stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Engine details | Reed valve |
| 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. Wave disc |
| Front brakes diameter | 185 mm (7.3 inches) |
| Front brakes | Single disc. Floating wave disk, 4-piston caliper |
| Rear tyre | 4.00-18 |
| Front tyre | 2.75-21 |
| Rear wheel travel | 174 mm (6.9 inches) |
| Rear Suspension | Reiger hydraulic mono shock absorber (3 ways). Rebound / Compression / Spring Preload Ajustable |
| Front wheel travel | 180 mm (7.1 inches) |
| Front Suspension | TECH with aluminium bar Ø 39. Ajustable Rebound / Compression / Spring Preload / End stroke. |
| Frame type | Chrom-Molybdenum tubular frame |
| | |
Physical measures and capacities | |
| Fuel capacity | 2.50 litres (0.66 gallons) |
| Wheelbase | 1,320 mm (52.0 inches) |
| Overall width | 825 mm (32.5 inches) |
| Overall length | 2,010 mm (79.1 inches) |
| Overall height | 1,130 mm (44.5 inches) |
| Seat height | 630 mm (24.8 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 |
| Comments | Various carbon fiber parts. Limited edition. Spanish made bike. |
| Starter | Kick |
| Color options | Red/white/black |
Performance Profile & Rider Fit
Best For
Track10%
City5%
Cornering60%
Daily Riding5%
Touring3%
Passenger0%
Rider Profile
| Best For | Built for skilled or dedicated novice trials riders who are developing specialized balance and clutch-control skills rather than general road or off-road touring experience. |
| Purpose | A dedicated competition trials machine designed purely for tackling technical obstacles at walking pace, not for distance riding or general fun laps. |
| Rider Fit | Its featherweight dry weight and tiny 630mm seat height make it extremely easy to muscle around and paddle through obstacles, though the lack of a real seat demands standing-focused riding. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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