Viarelli Monztro vs Aprilia SR 50 Factory (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Viarelli Monztrostacks up against the Aprilia SR 50 Factory. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Viarelli Monztro | Aprilia SR 50 Factory |
|---|---|---|
| Model year | 2021 | 2021 |
| Price | — | $3,170 |
| Engine | 49 cc | 49 cc |
| Horsepower | 3 hp | 4 hp |
| Torque | 3 Nm | 4 Nm |
| Weight | 99 kg | 107 kg |
| Seat height | — | 31 mm |
| Fuel capacity | 1.7 L | 2.0 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc | Single disc. 2 opposing pistons |
| Rear brakes | Single disc | Single disc. 2 opposing pistons |
| Tires | — | 130/60-13 / 130/60-13 |
Viarelli Monztro vs Aprilia SR 50 Factory — which should you buy?
Picking between the Viarelli Monztro and the Aprilia SR 50 Factory usually comes down to the numbers you care about most. On paper, the Viarelli Monztro brings 3 hp in a 99 kg package, while the Aprilia SR 50 Factory counters with 4 hp at 107 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: