KTM 620 Duke vs KTM 640 LC4 Supermoto (2007)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KTM 620 Dukestacks up against the KTM 640 LC4 Supermoto. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | KTM 620 Duke | KTM 640 LC4 Supermoto |
|---|---|---|
| Model year | 1997 | 2007 |
| 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 capacity | — | 2.4 L |
| 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 — which should you buy?
Picking between the KTM 620 Duke and the KTM 640 LC4 Supermoto 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 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: