Italjet Fast Boy vs Thumpstar MX 50 JR (2020)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Italjet Fast Boystacks up against the Thumpstar MX 50 JR. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Italjet Fast Boy | Thumpstar MX 50 JR |
|---|---|---|
| Model year | 2008 | 2020 |
| Price | — | — |
| Engine | 47 cc | 49 cc |
| Weight | 24 kg | 42 kg |
| Seat height | — | 24 mm |
| Fuel capacity | 0.3 L | 0.6 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | — |
| Front brakes | Single disc | Single disc. Dual piston hydraulic disc |
| Rear brakes | Single disc | Single disc. Single piston |
| Tires | 2.75-10 / 2.75-10 | — |
Italjet Fast Boy vs Thumpstar MX 50 JR — which should you buy?
Picking between the Italjet Fast Boy and the Thumpstar MX 50 JR usually comes down to the numbers you care about most. On paper, the Italjet Fast Boy brings its published horsepower in a 24 kg package, while the Thumpstar MX 50 JR counters with its own power figure at 42 kg.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: