Yamaha BWs vs Derbi Sonar 50 2T (2012)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha BWsstacks up against the Derbi Sonar 50 2T. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecYamaha BWsDerbi Sonar 50 2T
Model year20122012
Price$1,850
Engine49 cc49 cc
Horsepower3 hp5 hp
Torque4 Nm5 Nm
Weight95 kg
Seat height30 mm31 mm
Fuel capacity1.4 L1.6 L
Fuel typepetrolpetrol
TransmissionAutomaticAutomatic
Front brakesSingle discSingle disc
Rear brakesExpanding brake (drum brake)Expanding brake (drum brake)
Tires120/90-10 / 150/80-10 90/80-16 / 110/80-14

Yamaha BWs vs Derbi Sonar 50 2T — which should you buy?

Picking between the Yamaha BWs and the Derbi Sonar 50 2T usually comes down to the numbers you care about most. On paper, the Yamaha BWs brings 3 hp, while the Derbi Sonar 50 2T counters with 5 hp at 95 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: