Kymco Top Boy 50 On Road vs Diamo Retro 50 (2007)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Kymco Top Boy 50 On Roadstacks up against the Diamo Retro 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Kymco Top Boy 50 On Road | Diamo Retro 50 |
|---|---|---|
| Model year | 2007 | 2007 |
| Price | — | $1,495 |
| Engine | 50 cc | 50 cc |
| Horsepower | — | 4 hp |
| Torque | 6 Nm | — |
| Weight | 96 kg | 90 kg |
| Seat height | — | 29 mm |
| Fuel capacity | — | 2.0 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc | Double disc. ABS |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 120/90-10 / 130/90-10 | -1 |
Kymco Top Boy 50 On Road vs Diamo Retro 50 — which should you buy?
Picking between the Kymco Top Boy 50 On Road and the Diamo Retro 50 usually comes down to the numbers you care about most. On paper, the Kymco Top Boy 50 On Road brings its published horsepower in a 96 kg package, while the Diamo Retro 50 counters with 4 hp at 90 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:

