UM GP1-R 50 vs Beta Ark AC RR (2010)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the UM GP1-R 50stacks up against the Beta Ark AC RR. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | UM GP1-R 50 | Beta Ark AC RR |
|---|---|---|
| Model year | 2010 | 2010 |
| Price | — | — |
| Engine | 49 cc | 49 cc |
| Weight | 91 kg | 88 kg |
| Seat height | 30 mm | — |
| Fuel capacity | 1.5 L | 2.0 L |
| Fuel type | petrol | petrol |
| Transmission | 1-speed | Automatic |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 120/70-12 / 120/70-12 | 130/60-13 / 130/60-13 |
UM GP1-R 50 vs Beta Ark AC RR — which should you buy?
Picking between the UM GP1-R 50 and the Beta Ark AC RR usually comes down to the numbers you care about most. On paper, the UM GP1-R 50 brings its published horsepower in a 91 kg package, while the Beta Ark AC RR counters with its own power figure at 88 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:

