Yamaha DT50X vs Rieju 50 Spike Racing Castrol Pro (2012)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha DT50Xstacks up against the Rieju 50 Spike Racing Castrol Pro. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha DT50X | Rieju 50 Spike Racing Castrol Pro |
|---|---|---|
| Model year | 2012 | 2005 |
| Price | — | — |
| Engine | 249 cc | 50 cc |
| Horsepower | 18 hp | 10 hp |
| Torque | 19 Nm | — |
| Weight | 133 kg | — |
| Seat height | 31 mm | — |
| Fuel capacity | 2.5 L | — |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 6-speed |
| Front brakes | Single disc | Single disc. Two piston calipers |
| Rear brakes | Single disc | Single disc |
| Tires | 110/70-17 / 130/70-17 | 100/80-17 / 130/70-17 |
Yamaha DT50X vs Rieju 50 Spike Racing Castrol Pro — which should you buy?
Picking between the Yamaha DT50X and the Rieju 50 Spike Racing Castrol Pro 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 50 Spike Racing Castrol Pro counters with 10 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:

