WK Retro 50 vs UM X-Peed 50 (2007)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the WK Retro 50stacks up against the UM X-Peed 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | WK Retro 50 | UM X-Peed 50 |
|---|---|---|
| Model year | 2007 | 2006 |
| Price | $1,495 | — |
| Engine | 50 cc | 50 cc |
| Horsepower | 4 hp | — |
| Weight | 90 kg | 85 kg |
| Seat height | 29 mm | 30 mm |
| Fuel capacity | 2.0 L | 1.3 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Double disc. ABS | Single disc. ABS system. |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | -1 | 120/70-12 / 120/70-12 |
WK Retro 50 vs UM X-Peed 50 — which should you buy?
Picking between the WK Retro 50 and the UM X-Peed 50 usually comes down to the numbers you care about most. On paper, the WK Retro 50 brings 4 hp in a 90 kg package, while the UM X-Peed 50 counters with its own power figure at 85 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: