Kymco Top Boy 50 vs Derbi Revolution 50 GS (2006)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Kymco Top Boy 50stacks up against the Derbi Revolution 50 GS. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Kymco Top Boy 50 | Derbi Revolution 50 GS |
|---|---|---|
| Model year | 2006 | 2006 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Horsepower | 5 hp | 9 hp |
| Torque | 6 Nm | — |
| Weight | 96 kg | — |
| Fuel capacity | — | 1.1 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 120/90-J10 / 130/90-J10 | — |
Kymco Top Boy 50 vs Derbi Revolution 50 GS — which should you buy?
Picking between the Kymco Top Boy 50 and the Derbi Revolution 50 GS usually comes down to the numbers you care about most. On paper, the Kymco Top Boy 50 brings 5 hp in a 96 kg package, while the Derbi Revolution 50 GS counters with 9 hp.
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:

