Hyosung SF 50B vs Derbi GP1 50 Racing (2009)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Hyosung SF 50Bstacks up against the Derbi GP1 50 Racing. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Hyosung SF 50B | Derbi GP1 50 Racing |
|---|---|---|
| Model year | 2009 | 2009 |
| Price | — | — |
| Engine | 49 cc | 49 cc |
| Weight | — | 103 kg |
| Seat height | — | 33 mm |
| Fuel capacity | 1.1 L | 2.1 L |
| Fuel type | petrol | petrol |
| Transmission | — | Automatic |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 120/90-10 / 130/90-10 | 120/70-14 / 140/60-14 |
Hyosung SF 50B vs Derbi GP1 50 Racing — which should you buy?
Picking between the Hyosung SF 50B and the Derbi GP1 50 Racing usually comes down to the numbers you care about most. On paper, the Hyosung SF 50B brings its published horsepower, while the Derbi GP1 50 Racing counters with its own power figure at 103 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:

