Derbi Dirt Kid 12 vs Aprilia Mini RX 50 Challenge (2006)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Derbi Dirt Kid 12stacks up against the Aprilia Mini RX 50 Challenge. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Derbi Dirt Kid 12 | Aprilia Mini RX 50 Challenge |
|---|---|---|
| Model year | 2006 | 2005 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Horsepower | 5 hp | 3 hp |
| Weight | — | 38 kg |
| Seat height | — | 29 mm |
| Fuel capacity | 0.6 L | — |
| Fuel type | petrol | petrol |
| Transmission | 1-speed | — |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | — | 14-2.50 / 12-3.00 |
Derbi Dirt Kid 12 vs Aprilia Mini RX 50 Challenge — which should you buy?
Picking between the Derbi Dirt Kid 12 and the Aprilia Mini RX 50 Challenge usually comes down to the numbers you care about most. On paper, the Derbi Dirt Kid 12 brings 5 hp, while the Aprilia Mini RX 50 Challenge counters with 3 hp at 38 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:

