14 August. Friday 2026
GAS GAS TrialGP 125 - 2020 Specifications and Reviews
The 2020 GAS GAS TrialGP 125 is a lightweight Spanish trials bike designed for beginner to intermediate riders developing their technique on challenging terrain. Known for its exceptional maneuverability and low seat height of 24.8 inches, this compact machine excels in technical rock crawling and tight obstacles. Its minimal 146.6-pound weight and responsive handling make it ideal for riders learning precision balance and control.
2020
General information | |
| Category | Trial |
| Year | 2020 |
| Model | GAS GAS TrialGP 125 |
Engine and Transmission Specifications | |
| Clutch | GG 1/3 hydraulic-diaphragm-system |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | 2.5 % Mixture |
| Ignition | CDI digital magnetic flywheel |
| 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: | 124.8 ccm (7.62 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Wheels | In aluminium with spokes. |
| Rear brakes | Single disc. 2-piston |
| Diameter | 185 mm (7.3 inches) |
| Front brakes | Single disc. Floating, 4-piston |
| Rear tire | 4.00-18 |
| Front tire | 2.75-21 |
| Rear wheel travel | 174 mm (6.9 inches) |
| Rear Suspension | ÖHLINS hydraulic mono shock absorber (2 ways). Rebound and spring pre-load ajustable. |
| Front wheel travel | 167 mm (6.6 inches) |
| Front Suspension | TECH with aluminium bar Ø 39 |
| Frame type | Chrom-Molybdenum tubular frame |
Physical measures and capacities | |
| Fuel capacity | 2.50 litres (0.66 US gallons) |
| Wheelbase | 1320 mm (52.0 inches) |
| Overall width | 825 mm (32.5 inches) |
| Overall length | 2010 mm (79.1 inches) |
| Overall height | 1130 mm (44.5 inches) |
| Seat height | 630 mm (24.8 inches) If adjustable, lowest setting. |
| Dry weight | 66.5 kg (146.6 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Spanish bike. |
| Starter | Kick |
| Color options | Red/black/white |
Performance Profile & Rider Fit
Best For
Track5%
City5%
Cornering60%
Daily Riding5%
Touring3%
Passenger0%
Rider Profile
| Best For | This is a highly specialized trial machine best suited to riders with dedicated trials skill or a strong commitment to learning the discipline, not general street or trail riders. |
| Purpose | Built purely for competitive and recreational trials riding, where balance, throttle control, and obstacle negotiation matter far more than outright speed. |
| Rider Fit | Its extremely light dry weight and tall, narrow seat height reward an active, standing riding style and favor riders who are fit, light, and comfortable balancing the bike at low speeds. |
| Character | A featherweight, highly responsive two-stroke with premium suspension components that make it feel nimble, precise, and eager to hop, pivot, and climb over technical terrain. |
| Not Ideal For | This is not the bike for anyone wanting a comfortable commuter, a highway tourer, or a passenger-friendly machine, since it lacks a real seat, luggage capacity, and sustained speed capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2020 GAS GAS TrialGP 125 motorcycle is a top-of-the-line option for riders looking for a high-performance, reliable trials bike. With its powerful 125cc engine and lightweight frame, this bike delivers exceptional handling and control on a variety of terrains. The advanced suspension system and responsive brakes make it easy to navigate tight turns and obstacles, while the durable construction ensures long-lasting durability. Whether you're a seasoned competitor or a weekend warrior, the TrialGP 125 is a top choice for riders looking to take their skills to the next level. Overall, the 2020 GAS GAS TrialGP 125 motorcycle offers an impressive combination of power, performance, and durability. Its advanced features make it a top choice for trial riders looking for a high-quality, reliable bike that can handle the challenges of off-road riding. With its sleek design and top-notch engineering, this motorcycle is sure to impress both seasoned riders and newcomers to the sport. If you're in the market for a trials bike that delivers on all fronts, the TrialGP 125 is definitely worth considering.Add a Comment
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