Derbi GP1 50 Open vs Yamaha Neos 4S (2009)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Derbi GP1 50 Openstacks up against the Yamaha Neos 4S. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Derbi GP1 50 Open | Yamaha Neos 4S |
|---|---|---|
| Model year | 2009 | 2009 |
| Price | — | — |
| Engine | 49 cc | 49 cc |
| Horsepower | — | 3 hp |
| Torque | — | 3 Nm |
| Weight | 103 kg | — |
| Seat height | 31 mm | 31 mm |
| Fuel capacity | 2.9 L | 1.4 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Tires | 120/70-14 / 140/60-13 | 120/70-12 / 130/70-12 |
Derbi GP1 50 Open vs Yamaha Neos 4S — which should you buy?
Picking between the Derbi GP1 50 Open and the Yamaha Neos 4S usually comes down to the numbers you care about most. On paper, the Derbi GP1 50 Open brings its published horsepower in a 103 kg package, while the Yamaha Neos 4S 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: