Derbi Dirt Kid 50 vs Xmotos XB-21D (2009)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Derbi Dirt Kid 50stacks up against the Xmotos XB-21D. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Derbi Dirt Kid 50 | Xmotos XB-21D |
|---|---|---|
| Model year | 2009 | 2008 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Horsepower | — | 7 hp |
| Weight | 47 kg | 60 kg |
| Seat height | 27 mm | 26 mm |
| Fuel capacity | 0.6 L | 0.8 L |
| Fuel type | petrol | petrol |
| Transmission | 1-speed | Automatic |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 2.50-12 / 2.75-10 | — |
Derbi Dirt Kid 50 vs Xmotos XB-21D — which should you buy?
Picking between the Derbi Dirt Kid 50 and the Xmotos XB-21D usually comes down to the numbers you care about most. On paper, the Derbi Dirt Kid 50 brings its published horsepower in a 47 kg package, while the Xmotos XB-21D counters with 7 hp at 60 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: