Pitster Pro XJR SS 50 Auto vs Polini 911 GP5 Reverse 50 (2013)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Pitster Pro XJR SS 50 Autostacks up against the Polini 911 GP5 Reverse 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Pitster Pro XJR SS 50 Auto | Polini 911 GP5 Reverse 50 |
|---|---|---|
| Model year | 2013 | 2011 |
| Price | $999 | — |
| Engine | 49 cc | 49 cc |
| Weight | 50 kg | 21 kg |
| Seat height | 24 mm | 18 mm |
| Fuel capacity | 0.8 L | 0.4 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | — |
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 2.50-10 / 2.50-10 | 90/65-R6.5 / 110/50-R6.5 |
Pitster Pro XJR SS 50 Auto vs Polini 911 GP5 Reverse 50 — which should you buy?
Picking between the Pitster Pro XJR SS 50 Auto and the Polini 911 GP5 Reverse 50 usually comes down to the numbers you care about most. On paper, the Pitster Pro XJR SS 50 Auto brings its published horsepower in a 50 kg package, while the Polini 911 GP5 Reverse 50 counters with its own power figure at 21 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:

