Derbi Revolution 50 GS vs UM X-Peed 50R (2007)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Derbi Revolution 50 GSstacks up against the UM X-Peed 50R. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecDerbi Revolution 50 GSUM X-Peed 50R
Model year20062007
Price—$1,849
Engine50 cc49 cc
Horsepower9 hp—
Seat height—31 mm
Fuel capacity1.1 L—
Fuel typepetrolpetrol
TransmissionAutomaticAutomatic
Front brakesExpanding brake (drum brake)Single disc. Vented brake
Rear brakesExpanding brake (drum brake)Expanding brake (drum brake)
Tires—120/70-12 / 120/70-12

Derbi Revolution 50 GS vs UM X-Peed 50R — which should you buy?

Picking between the Derbi Revolution 50 GS and the UM X-Peed 50R usually comes down to the numbers you care about most. On paper, the Derbi Revolution 50 GS brings 9 hp, while the UM X-Peed 50R 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: