KSR Demonio 50 vs Sinnis Jet II (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KSR Demonio 50stacks up against the Sinnis Jet II. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | KSR Demonio 50 | Sinnis Jet II |
|---|---|---|
| Model year | 2021 | 2021 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Horsepower | 3 hp | 4 hp |
| Weight | 95 kg | 135 kg |
| Seat height | — | 28 mm |
| Fuel capacity | 1.1 L | — |
| Fuel type | petrol | petrol |
| Transmission | — | Automatic |
| Front brakes | Single disc | Single disc. Hydraulic. |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Tires | 120/70-12 / 130/70-12 | 3.50-10 / 3.50-10 |
KSR Demonio 50 vs Sinnis Jet II — which should you buy?
Picking between the KSR Demonio 50 and the Sinnis Jet II usually comes down to the numbers you care about most. On paper, the KSR Demonio 50 brings 3 hp in a 95 kg package, while the Sinnis Jet II counters with 4 hp at 135 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:

