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

SpecPitster Pro XJR SS 50 AutoPolini 911 GP5 Reverse 50
Model year20132011
Price$999
Engine49 cc49 cc
Weight50 kg21 kg
Seat height24 mm18 mm
Fuel capacity0.8 L0.4 L
Fuel typepetrolpetrol
TransmissionAutomatic
Front brakesExpanding brake (drum brake)Single disc
Rear brakesExpanding brake (drum brake)Single disc
Tires2.50-10 / 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: