The KTM 640 Duke II motorcycle specifications include a 625 cc (38.14 cu in) engine, power of 60 hp (43.8 kW) @ 7,500 rpm, a 5-speed gearbox, and a listed weight of 145 kg (319.7 lb).
Key specifications
The 1999 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the KTM 640 Duke II compares
This compares the motorcycle with all KTM models in this specifications database. The blue marker is this model and the grey line is the KTM database average.
About 15% lower than the KTM database average. Around the 51st percentile across KTM models.
About 41% higher than the KTM database average. Around the 78th percentile across KTM models.
About 14% larger than the KTM database average. Around the 75th percentile across KTM models.
KTM database percentile rankings
Percentiles show where this motorcycle sits across the KTM specifications database. They are descriptive database rankings, not performance ratings.
60 hp — more powerful than about 51% of KTM models with power data.
625 cc — larger displacement than about 78% of KTM models.
12 L — larger than about 75% of KTM fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Power-to-weight ratio | 0.414 hp/kg |
|---|---|
| Power-to-weight | 413.8 hp/tonne |
| Specific power | 96.0 hp/L |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 625 cc (38.14 cu in) |
| Power | 60 hp (43.8 kW) @ 7,500 rpm |
| Cooling system | Liquid |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
Dimensions and weight
| Dry weight | 145 kg (319.7 lb) |
|---|---|
| Wheelbase | 1,460 mm (57.5 inches) |
Fuel and emissions
| Fuel capacity | 12.00 L (3.17 US gal) |
|---|
Performance
| Top speed | 170.0 km/h (105.6 mph) |
|---|---|
| Power/weight ratio | 0.4138 hp/kg |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from KTM models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official KTM information before relying on them. Visit the official KTM website.