Yamaha BWs 12 vs Beta Ark One AC (2010)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha BWs 12stacks up against the Beta Ark One AC. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha BWs 12 | Beta Ark One AC |
|---|---|---|
| Model year | 2010 | 2010 |
| Price | — | — |
| Engine | 49 cc | 49 cc |
| Horsepower | 3 hp | — |
| Torque | 4 Nm | — |
| Weight | 82 kg | 88 kg |
| Seat height | 30 mm | — |
| Fuel capacity | 1.4 L | 2.0 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 120/70-12 / 130/70-12 | 130/60-13 / 130/60-13 |
Yamaha BWs 12 vs Beta Ark One AC — which should you buy?
Picking between the Yamaha BWs 12 and the Beta Ark One AC usually comes down to the numbers you care about most. On paper, the Yamaha BWs 12 brings 3 hp in a 82 kg package, while the Beta Ark One AC 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:

