Italjet Fast Boy vs Thumpstar MX 50 SR (2020)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Italjet Fast Boystacks up against the Thumpstar MX 50 SR. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Italjet Fast Boy | Thumpstar MX 50 SR |
|---|---|---|
| Model year | 2008 | 2020 |
| Price | — | — |
| Engine | 47 cc | 49 cc |
| Weight | 24 kg | 42 kg |
| Seat height | — | 27 mm |
| Fuel capacity | 0.3 L | 0.6 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | — |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Tires | 2.75-10 / 2.75-10 | 2.50-10 / 2.5-10 |
Italjet Fast Boy vs Thumpstar MX 50 SR — which should you buy?
Picking between the Italjet Fast Boy and the Thumpstar MX 50 SR 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 SR 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: