| MODEL | KTM 620 DUKE 1995 - 1996 |
| Year | 1995 - 1996 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valves |
| Displacement / Capacity | 609 cc / 37.2 cu in |
| Bore X Stroke | 101 x 76 mm |
| Compression Ratio | 10.4:1 |
| Cooling System | Liquid cooled |
| Max Power | 40.1 kW / 55 hp @ 7000 rpm |
| Max Torque | 60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm |
| Ignition | KDC-CDI |
| Induction | Dell'Orto PHM 40 SD carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | White Power 4054 top adjuster; 142 mm / 5.6 in wheel travel |
| Rear Suspension | White Power monoshock 4681 BAVP single adjuster; 170 mm / 6.7 in wheel travel |
| Front Brakes | Single 320 mm disc, 4 piston caliper |
| Rear Brakes | Single 220 mm disc, 1 piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 894 mm / 35.2 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 145 kg / 320 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/70 - 17 Pirelli MT60 |
| Rear Tyre | 160/60 - 17 Pirelli MT60 |
| FUEL SYSTEM | |
| Fuel Capacity | 10.3 Litres / 2.7 US gal / 2.3 Imp gal |
| Fuel Consumption | 6.4 L/100 km / 15.7 km/l / 37 US mpg / 44.4 Imp mpg |
| Top Speed | 169 km/h / 105 mph |
The Duke was KTM's first street bike and its first supermoto, built by taking an off-road single and putting it on a road-biased chassis with large-diameter wheels and sporty tyres. This 1995-96 version is the original 620 Duke, shown as a concept in 1993 and sold from 1994. It is a light, high-revving single aimed at riders who want off-road character on tarmac.
