E-Ton Viper ST. Exl-50 vs Derbi DFW 50 (2010)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the E-Ton Viper ST. Exl-50stacks up against the Derbi DFW 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | E-Ton Viper ST. Exl-50 | Derbi DFW 50 |
|---|---|---|
| Model year | 2010 | 2009 |
| Price | — | — |
| Engine | 49 cc | 49 cc |
| Weight | 152 kg | 115 kg |
| Seat height | 31 mm | 24 mm |
| Fuel capacity | 2.1 L | 1.3 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | 2-speed |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 21/6-10 / 20/10-9 | 19x7-8 / 19x7-8 |
E-Ton Viper ST. Exl-50 vs Derbi DFW 50 — which should you buy?
Picking between the E-Ton Viper ST. Exl-50 and the Derbi DFW 50 usually comes down to the numbers you care about most. On paper, the E-Ton Viper ST. Exl-50 brings its published horsepower in a 152 kg package, while the Derbi DFW 50 counters with its own power figure at 115 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:

