Derbi Dirt Boy 10 vs Factory Bike Phantom R12 Agua (2008)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Derbi Dirt Boy 10stacks up against the Factory Bike Phantom R12 Agua. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecDerbi Dirt Boy 10Factory Bike Phantom R12 Agua
Model year20062008
Price
Engine50 cc50 cc
Horsepower5 hp
Weight43 kg
Seat height26 mm
Fuel capacity0.6 L0.7 L
Fuel typepetrolpetrol
Transmission1-speedAutomatic
Front brakesSingle discSingle disc
Rear brakesExpanding brake (drum brake)Single disc
Tires2.50-12 / 2.50-10

Derbi Dirt Boy 10 vs Factory Bike Phantom R12 Agua — which should you buy?

Picking between the Derbi Dirt Boy 10 and the Factory Bike Phantom R12 Agua usually comes down to the numbers you care about most. On paper, the Derbi Dirt Boy 10 brings 5 hp, while the Factory Bike Phantom R12 Agua counters with its own power figure at 43 kg.

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: