Polini 910 GP4 Air Junior vs Polini 910 Dirt Road S Air (2007)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Polini 910 GP4 Air Juniorstacks up against the Polini 910 Dirt Road S Air. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Polini 910 GP4 Air Junior | Polini 910 Dirt Road S Air |
|---|---|---|
| Model year | 2007 | 2005 |
| Price | — | — |
| Engine | 40 cc | 40 cc |
| Horsepower | 4 hp | 4 hp |
| Weight | 21 kg | 18 kg |
| Seat height | 16 mm | 15 mm |
| Fuel capacity | — | 0.5 L |
| Fuel type | petrol | petrol |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc. 130 | Single disc |
| Tires | 90/65-R6.5 / 90/65-R6.5 | — |
Polini 910 GP4 Air Junior vs Polini 910 Dirt Road S Air — which should you buy?
Picking between the Polini 910 GP4 Air Junior and the Polini 910 Dirt Road S Air usually comes down to the numbers you care about most. On paper, the Polini 910 GP4 Air Junior brings 4 hp in a 21 kg package, while the Polini 910 Dirt Road S Air counters with 4 hp at 18 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:

