Xmotos XB-21D vs Derbi Dirt Kid (2008)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Xmotos XB-21Dstacks up against the Derbi Dirt Kid. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecXmotos XB-21DDerbi Dirt Kid
Model year20082007
Price
Engine50 cc50 cc
Horsepower7 hp5 hp
Weight60 kg
Seat height26 mm
Fuel capacity0.8 L0.6 L
Fuel typepetrolpetrol
TransmissionAutomatic1-speed
Front brakesSingle discSingle disc
Rear brakesSingle discExpanding brake (drum brake)
Tires2.50-12 / 2.75-10

Xmotos XB-21D vs Derbi Dirt Kid — which should you buy?

Picking between the Xmotos XB-21D and the Derbi Dirt Kid usually comes down to the numbers you care about most. On paper, the Xmotos XB-21D brings 7 hp in a 60 kg package, while the Derbi Dirt Kid counters with 5 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: