UM GP1-R 50 vs Derbi Atlantis City 50 2T (2010)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the UM GP1-R 50stacks up against the Derbi Atlantis City 50 2T. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | UM GP1-R 50 | Derbi Atlantis City 50 2T |
|---|---|---|
| Model year | 2010 | 2010 |
| Price | — | — |
| Engine | 49 cc | 49 cc |
| Weight | 91 kg | 86 kg |
| Seat height | 30 mm | 31 mm |
| Fuel capacity | 1.5 L | 1.9 L |
| Fuel type | petrol | petrol |
| Transmission | 1-speed | Automatic |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 120/70-12 / 120/70-12 | 120/70-12 / 120/70-12 |
UM GP1-R 50 vs Derbi Atlantis City 50 2T — which should you buy?
Picking between the UM GP1-R 50 and the Derbi Atlantis City 50 2T 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 Derbi Atlantis City 50 2T counters with its own power figure at 86 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: