Serpento Kaiza 150 vs Fosti F31 (2023)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Serpento Kaiza 150stacks up against the Fosti F31. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Serpento Kaiza 150 | Fosti F31 |
|---|---|---|
| Model year | 2023 | 2022 |
| Price | — | — |
| Engine | 149 cc | 149 cc |
| Horsepower | 12 hp | 12 hp |
| Torque | 11 Nm | 9 Nm |
| Weight | 96 kg | 110 kg |
| Fuel capacity | 2.3 L | 4.0 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | — |
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 2.50-18 / 2.75-18 | 2.75-18 / 3.25-18 |
Serpento Kaiza 150 vs Fosti F31 — which should you buy?
Picking between the Serpento Kaiza 150 and the Fosti F31 usually comes down to the numbers you care about most. On paper, the Serpento Kaiza 150 brings 12 hp in a 96 kg package, while the Fosti F31 counters with 12 hp at 110 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: