Derbi xRace 50 SM vs Rieju 50 Spike Racing Castrol Pro (2007)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Derbi xRace 50 SMstacks 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 | Derbi xRace 50 SM | Rieju 50 Spike Racing Castrol Pro |
|---|---|---|
| Model year | 2007 | 2005 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Horsepower | 9 hp | 10 hp |
| Fuel capacity | 1.9 L | — |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 6-speed |
| Front brakes | Single disc | Single disc. Two piston calipers |
| Rear brakes | Single disc | Single disc |
| Tires | 100/80-17 / 130/80-17 | 100/80-17 / 130/70-17 |
Derbi xRace 50 SM vs Rieju 50 Spike Racing Castrol Pro — which should you buy?
Picking between the Derbi xRace 50 SM and the Rieju 50 Spike Racing Castrol Pro usually comes down to the numbers you care about most. On paper, the Derbi xRace 50 SM brings 9 hp, 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: