Gilera Runner ST 125 vs Derbi Sonar 125 4T (2012)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Gilera Runner ST 125stacks up against the Derbi Sonar 125 4T. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecGilera Runner ST 125Derbi Sonar 125 4T
Model year20122012
Price$2,099
Engine124 cc124 cc
Horsepower15 hp11 hp
Torque12 Nm10 Nm
Weight99 kg
Seat height32 mm32 mm
Fuel capacity2.3 L1.6 L
Fuel typepetrolpetrol
TransmissionAutomaticAutomatic
Front brakesSingle disc. Stainless steel floating disc with dual piston calliperSingle disc
Rear brakesSingle disc. Stainless steel disc, calliper with two opposed pistonsExpanding brake (drum brake)
Tires120/70-14 / 140/60-13 90/80-16 / 110/80-14

Gilera Runner ST 125 vs Derbi Sonar 125 4T — which should you buy?

Picking between the Gilera Runner ST 125 and the Derbi Sonar 125 4T usually comes down to the numbers you care about most. On paper, the Gilera Runner ST 125 brings 15 hp, while the Derbi Sonar 125 4T counters with 11 hp at 99 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: