Yamaha Mio Z vs KSR Demonio 125 (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha Mio Zstacks up against the KSR Demonio 125. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha Mio Z | KSR Demonio 125 |
|---|---|---|
| Model year | 2021 | 2021 |
| Price | — | — |
| Engine | 125 cc | 125 cc |
| Horsepower | 9 hp | 7 hp |
| Torque | 10 Nm | — |
| Weight | 94 kg | 119 kg |
| Seat height | 30 mm | — |
| Fuel capacity | 2.0 L | 2.0 L |
| Fuel type | petrol | petrol |
| Transmission | — | 5-speed |
| Front brakes | Single disc | Single disc. CBS |
| Rear brakes | Expanding brake (drum brake) | Single disc. CBS |
| Tires | 80/80-14 / 100/70-14 | 120/70-12 / 130/70-12 |
Yamaha Mio Z vs KSR Demonio 125 — which should you buy?
Picking between the Yamaha Mio Z and the KSR Demonio 125 usually comes down to the numbers you care about most. On paper, the Yamaha Mio Z brings 9 hp in a 94 kg package, while the KSR Demonio 125 counters with 7 hp at 119 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: