| MODEL | KTM 620 LC4 ADVENTURE 1997 |
| Year | 1997 |
| 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 |
| Start System | Kick & electric |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump, oil stored in frame |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 50 mm telescopic forks, compression and rebound adjustable; 280 mm / 11.0 in wheel travel |
| Rear Suspension | Single chock, preload, compression and rebound adjustable; 330 mm / 13.0 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 | 945 mm / 37.2 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 146 kg / 322 lbs |
| Wet Weight | 183 kg / 404 lbs (with full tank, per review text) |
| WHEEL SPECS | |
| Front Tyre | 90/90 - 21 |
| Rear Tyre | 130/80 - 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 28 L / 7.4 US gal / 6.2 Imp gal |
| Fuel Consumption | 6.9 L/100 km / 14.5 km/l / 34 US mpg / 41 Imp mpg |
| Top Speed | 167 km/h / 104 mph |
The LC4 Adventure in its 1997 listing is the dual-purpose version of the 620 R/XC: a dirt-bike engine and frame with rally-style bodywork, a fairing, a much larger tank and heavier-duty WP suspension. It was sold for long-distance road and trail riding. The reviewer called it neither a true streetbike nor a true dirt bike, and noted that the engine vibration was noticeable on the road.
