Yiben YB 50QT-9 Popular vs Docker Alpha S50 (2023)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yiben YB 50QT-9 Popularstacks up against the Docker Alpha S50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yiben YB 50QT-9 Popular | Docker Alpha S50 |
|---|---|---|
| Model year | 2009 | 2023 |
| Price | — | — |
| Engine | 47 cc | 48 cc |
| Horsepower | — | 3 hp |
| Weight | 88 kg | — |
| Fuel capacity | 1.3 L | 1.0 L |
| Fuel type | petrol | petrol |
| Transmission | — | 4-speed |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 120/70-12 / 120/70-12 | 2.50-17 / 2.75-17 |
Yiben YB 50QT-9 Popular vs Docker Alpha S50 — which should you buy?
Picking between the Yiben YB 50QT-9 Popular and the Docker Alpha S50 usually comes down to the numbers you care about most. On paper, the Yiben YB 50QT-9 Popular brings its published horsepower in a 88 kg package, while the Docker Alpha S50 counters with 3 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: