Yamaha SZ-RR Version 2 vs Keeway Ajax 150 (2020)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha SZ-RR Version 2stacks up against the Keeway Ajax 150. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha SZ-RR Version 2 | Keeway Ajax 150 |
|---|---|---|
| Model year | 2020 | 2017 |
| Price | — | — |
| Engine | 149 cc | 149 cc |
| Horsepower | 12 hp | 11 hp |
| Torque | 13 Nm | 10 Nm |
| Weight | 134 kg | 99 kg |
| Seat height | 32 mm | 30 mm |
| Fuel capacity | 3.7 L | 4.2 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 5-speed |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 2.75-17 / 100/90-17 | 2.75-18 / 3.00-18 |
Yamaha SZ-RR Version 2 vs Keeway Ajax 150 — which should you buy?
Picking between the Yamaha SZ-RR Version 2 and the Keeway Ajax 150 usually comes down to the numbers you care about most. On paper, the Yamaha SZ-RR Version 2 brings 12 hp in a 134 kg package, while the Keeway Ajax 150 counters with 11 hp at 99 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: