UM Max ZR vs Keeway RKS 125 Sport E4 (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the UM Max ZRstacks up against the Keeway RKS 125 Sport E4. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | UM Max ZR | Keeway RKS 125 Sport E4 |
|---|---|---|
| Model year | 2021 | 2021 |
| Price | — | — |
| Engine | 124 cc | 124 cc |
| Horsepower | 11 hp | 11 hp |
| Torque | 9 Nm | 10 Nm |
| Weight | 100 kg | 136 kg |
| Seat height | 30 mm | 30 mm |
| Fuel capacity | — | 4.2 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 5-speed |
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 2.75-18 / 44273 | 90/90-17 / 120/80-17 |
UM Max ZR vs Keeway RKS 125 Sport E4 — which should you buy?
Picking between the UM Max ZR and the Keeway RKS 125 Sport E4 usually comes down to the numbers you care about most. On paper, the UM Max ZR brings 11 hp in a 100 kg package, while the Keeway RKS 125 Sport E4 counters with 11 hp at 136 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: