Thumpstar TSX 50 JR - 2023 Specifications and Reviews
The 2023 Thumpstar TSX 50 JR is a lightweight minibike designed for young and beginner riders seeking an affordable entry into off-road riding. Powered by a 50cc two-stroke engine with automatic transmission and liquid cooling, it delivers responsive performance with a top speed of 70 km/h. Known for its adjustable Fastace suspension and nimble handling, this bike excels in teaching fundamental riding skills on varied terrain.
2023
Engine and Transmission Specifications | |
| Exhaust system | Pipe Bomb |
| Transmission type | Chain (final drive) |
| Gearbox | Automatic |
| Cooling system | Liquid |
| Fuel system | Carburettor. 19mm |
| Top speed | 70.0 km/h (43.5 mph) |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 50.0 ccm (3.05 cubic inches) |
| | |
| Category | Minibike, cross |
| Year | 2023 |
| Model | Thumpstar TSX 50 JR |
Brakes, suspension, Frame and wheels | |
| Wheels | Alloy Rim |
| Rear brakes | Single disc |
| Diameter | 190 mm (7.5 inches) |
| Front brakes | Single disc. 2-piston calipers |
| Rear tire | 2.5-10 |
| Front tire | 2.50-10 |
| Rear Suspension | Fastace Adjustable Shock |
| Front Suspension | Fastace Adjustable Forks |
Physical measures and capacities | |
| Fuel capacity | 1.30 litres (0.34 US gallons) |
| Wheelbase | 953 mm (37.5 inches) |
| Seat height | 603 mm (23.7 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 45.0 kg (99.2 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Chines bike sold in Australia. |
| Starter | Kick |
| Color options | Green/black/red |
Performance Profile & Rider Fit
43.5 mph
Top Speed
Best For
Track40%
City10%
Cornering55%
Daily Riding10%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a youth-oriented minibike best suited to beginner and junior riders learning throttle control and balance, not experienced adults. |
| Purpose | Built purely for casual backyard and off-road play riding on a small scale, not for serious racing or transportation. |
| Rider Fit | Its tiny 603mm seat height and 45kg weight mean it's designed for small, lightweight riders such as children or very petite adults. |
| Character | A lightweight, nimble little cross-style minibike with adjustable suspension that rewards playful, low-speed maneuvering. |
| Not Ideal For | This bike is not suitable for highway use, adult-sized riders, carrying passengers, or any kind of long-distance touring. |
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
I recently had the opportunity to test ride the 2023 Thumpstar TSX 50 JR and I was thoroughly impressed. This junior motocross bike is perfect for young riders looking to get into the sport. It's lightweight and nimble, making it easy for beginners to handle. The powerful 50cc engine provides plenty of thrills without being overwhelming for less experienced riders. The TSX 50 JR also has a durable frame and quality components, ensuring that it can handle the rigors of off-road riding. Overall, I think the 2023 Thumpstar TSX 50 JR is a fantastic option for young riders wanting to start their motocross journey. If you're in the market for a junior motocross bike, the 2023 Thumpstar TSX 50 JR is definitely worth considering. It's a well-built and reliable option that can provide hours of fun for young riders. The 50cc engine delivers plenty of power, while the lightweight design makes it easy to handle for beginners. With its durable construction and quality components, the TSX 50 JR is sure to provide years of enjoyment for aspiring motocross riders. Overall, I highly recommend the 2023 Thumpstar TSX 50 JR for anyone looking to get their kid started in the sport.Add a Comment
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