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
| Spec | Gilera Runner ST 125 | Derbi Sonar 125 4T |
|---|---|---|
| Model year | 2012 | 2012 |
| Price | — | $2,099 |
| Engine | 124 cc | 124 cc |
| Horsepower | 15 hp | 11 hp |
| Torque | 12 Nm | 10 Nm |
| Weight | — | 99 kg |
| Seat height | 32 mm | 32 mm |
| Fuel capacity | 2.3 L | 1.6 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc. Stainless steel floating disc with dual piston calliper | Single disc |
| Rear brakes | Single disc. Stainless steel disc, calliper with two opposed pistons | Expanding brake (drum brake) |
| Tires | 120/70-14 / 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:

