14 August. Friday 2026
Thumpstar TSX 125 - 2020 Specifications and Reviews
The 2020 Thumpstar TSX 125 is a lightweight, beginner-friendly pit bike designed for young riders and those new to off-road motorcycling. Its compact 80kg frame, manageable 125cc power delivery, and responsive handling make it ideal for learning fundamental riding skills in closed courses and recreational settings. Known for its affordability and reliability, the TSX 125 delivers straightforward performance without unnecessary complexity.
General information | |
| Category | Minibike, cross |
| Year | 2020 |
| Model | Thumpstar TSX 125 |
Engine and Transmission Specifications | |
| Transmission type | Chain (final drive) |
| Fuel system | Carburettor. Mikuni VM22 26mm |
| Top speed | 90.0 km/h (55.9 mph) |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 125.0 ccm (7.63 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc. HSK Single Piston |
| Diameter | 220 mm (8.7 inches) |
| Front brakes | Single disc. Dual piston hydraulic disc |
| Rear tire | 80/100-12 |
| Front tire | 70/100-14 |
| Rear Suspension | VS 1 Linkage U Shock |
| Front Suspension | Inverted Telescopic |
| | |
Physical measures and capacities | |
| Fuel capacity | 3.40 litres (0.90 US gallons) |
| Wheelbase | 1260 mm (49.6 inches) |
| Dry weight | 80.0 kg (176.4 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Starter | Kick |
| Color options | Green/Black |
Performance Profile & Rider Fit
55.9 mph
Top Speed
Best For
Track10%
City15%
Cornering55%
Daily Riding10%
Touring5%
Passenger5%
Rider Profile
| Best For | Best suited to young or beginner riders learning off-road basics, or small-statured adults looking for a light, low-stakes pit bike. |
| Purpose | Designed for casual dirt riding, paddock bashing, and learning motocross fundamentals rather than any road use. |
| Rider Fit | Its light dry weight and kick start make it easy to manage and pick up, though the 830mm seat height is tall relative to its minibike class and may challenge shorter riders. |
| Character | A playful, low-powered pit bike with a simple carbureted single-cylinder engine and basic suspension geared toward fun over performance. |
| Not Ideal For | Not for anyone wanting highway speeds, long-distance travel, or carrying a passenger, as it lacks the power, top speed, and comfort for those roles. |
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 Thumpstar TSX 125 is a powerful and stylish motorcycle that has a lot to offer for riders of all skill levels. Its 125cc engine provides plenty of power for off-road adventures, while its lightweight and nimble design make it easy to maneuver through tough terrain. The bike's suspension system also helps absorb shocks and bumps, providing a smooth and comfortable ride. Plus, the TSX 125's sleek design and bold graphics make it stand out from the crowd. Whether you're a beginner looking to improve your skills or a seasoned rider seeking a new thrill, the 2020 Thumpstar TSX 125 is a great option. In conclusion, the 2020 Thumpstar TSX 125 is a top-notch motorcycle that delivers on both performance and style. With its powerful engine, agile handling, and eye-catching design, this bike is sure to impress riders of all levels. Whether you're hitting the trails or cruising around town, the TSX 125 is a great choice for those seeking an adrenaline-pumping ride.Add a Comment
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