Italjet Fast Boy 8 vs Thumpstar MX 50 SR (2020)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Italjet Fast Boy 8stacks 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 8 | Thumpstar MX 50 SR |
|---|---|---|
| Model year | 2007 | 2020 |
| Price | — | — |
| Engine | 47 cc | 49 cc |
| Weight | 24 kg | 42 kg |
| Seat height | 22 mm | 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 | 2.75-8 / 2.75-8 | 2.50-10 / 2.5-10 |
Italjet Fast Boy 8 vs Thumpstar MX 50 SR — which should you buy?
Picking between the Italjet Fast Boy 8 and the Thumpstar MX 50 SR usually comes down to the numbers you care about most. On paper, the Italjet Fast Boy 8 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:

