Yiben 139QBT-15 vs Kymco Top Boy 50 On Road (2008)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yiben 139QBT-15stacks up against the Kymco Top Boy 50 On Road. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yiben 139QBT-15 | Kymco Top Boy 50 On Road |
|---|---|---|
| Model year | 2008 | 2007 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Torque | — | 6 Nm |
| Weight | — | 96 kg |
| Fuel type | petrol | petrol |
| Transmission | — | Automatic |
| Front brakes | — | Single disc |
| Rear brakes | — | Expanding brake (drum brake) |
| Tires | — | 120/90-10 / 130/90-10 |
Yiben 139QBT-15 vs Kymco Top Boy 50 On Road — which should you buy?
Picking between the Yiben 139QBT-15 and the Kymco Top Boy 50 On Road usually comes down to the numbers you care about most. On paper, the Yiben 139QBT-15 brings its published horsepower, while the Kymco Top Boy 50 On Road counters with its own power figure at 96 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: