Vento Phantom r4i vs UM Matrix II 150 (2010)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Vento Phantom r4istacks up against the UM Matrix II 150. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Vento Phantom r4i | UM Matrix II 150 |
|---|---|---|
| Model year | 2010 | 2010 |
| Price | $2,199 | — |
| Engine | 150 cc | 150 cc |
| Horsepower | 9 hp | — |
| Torque | 9 Nm | — |
| Weight | 104 kg | 103 kg |
| Seat height | 38 mm | 35 mm |
| Fuel capacity | 1.4 L | 1.5 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | 1-speed |
| Front brakes | Single disc. ABS | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 130/60-13 / 130/60-13 | 130/60-13 / 130/60-13 |
Vento Phantom r4i vs UM Matrix II 150 — which should you buy?
Picking between the Vento Phantom r4i and the UM Matrix II 150 usually comes down to the numbers you care about most. On paper, the Vento Phantom r4i brings 9 hp in a 104 kg package, while the UM Matrix II 150 counters with its own power figure at 103 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:

