KTM 620 Duke vs KTM 640 LC4 Supermoto Black (2006)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KTM 620 Dukestacks up against the KTM 640 LC4 Supermoto Black. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | KTM 620 Duke | KTM 640 LC4 Supermoto Black |
|---|---|---|
| Model year | 1997 | 2006 |
| Price | — | — |
| Engine | 609 cc | 625 cc |
| Horsepower | 50 hp | 54 hp |
| Torque | — | 60 Nm |
| Weight | 149 kg | 149 kg |
| Seat height | 35 mm | 36 mm |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 5-speed |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Tires | — | 120/70-17 / 160/60-17 |
KTM 620 Duke vs KTM 640 LC4 Supermoto Black — which should you buy?
Picking between the KTM 620 Duke and the KTM 640 LC4 Supermoto Black usually comes down to the numbers you care about most. On paper, the KTM 620 Duke brings 50 hp in a 149 kg package, while the KTM 640 LC4 Supermoto Black counters with 54 hp at 149 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: