Viarelli Monztro vs TGB Key West 50 (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Viarelli Monztrostacks up against the TGB Key West 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Viarelli Monztro | TGB Key West 50 |
|---|---|---|
| Model year | 2021 | 2020 |
| Price | — | $1,999 |
| Engine | 49 cc | 49 cc |
| Horsepower | 3 hp | 2 hp |
| Torque | 3 Nm | — |
| Weight | 99 kg | 94 kg |
| Fuel capacity | 1.7 L | 1.8 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Tires | — | 120/90-10 / 120/90-10 |
Viarelli Monztro vs TGB Key West 50 — which should you buy?
Picking between the Viarelli Monztro and the TGB Key West 50 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 TGB Key West 50 counters with 2 hp at 94 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:

