Rieju RR Castrol vs Derbi Supermotard X-treme (2005)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Rieju RR Castrolstacks up against the Derbi Supermotard X-treme. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecRieju RR CastrolDerbi Supermotard X-treme
Model year20052005
Price
Engine50 cc50 cc
Horsepower10 hp
Fuel capacity1.6 L1.9 L
Fuel typepetrolpetrol
Transmission6-speed6-speed
Front brakesSingle disc. Double pistonSingle disc
Rear brakesSingle discSingle disc
Tires80/90-21 / 110/80-18 100/80-17 / 130/80-17

Rieju RR Castrol vs Derbi Supermotard X-treme — which should you buy?

Picking between the Rieju RR Castrol and the Derbi Supermotard X-treme usually comes down to the numbers you care about most. On paper, the Rieju RR Castrol brings 10 hp, while the Derbi Supermotard X-treme counters with its own power figure.

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: