Yamaha DT50X vs Rieju SMX 125 4T (2012)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha DT50Xstacks up against the Rieju SMX 125 4T. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha DT50X | Rieju SMX 125 4T |
|---|---|---|
| Model year | 2012 | 2005 |
| Price | — | — |
| Engine | 249 cc | 50 cc |
| Horsepower | 18 hp | 15 hp |
| Torque | 19 Nm | — |
| Weight | 133 kg | — |
| Seat height | 31 mm | — |
| Fuel capacity | 2.5 L | 2.2 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 5-speed |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Tires | 110/70-17 / 130/70-17 | 100/80-17 / 120/80-17 |
Yamaha DT50X vs Rieju SMX 125 4T — which should you buy?
Picking between the Yamaha DT50X and the Rieju SMX 125 4T usually comes down to the numbers you care about most. On paper, the Yamaha DT50X brings 18 hp in a 133 kg package, while the Rieju SMX 125 4T counters with 15 hp.
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:

