| MODEL | KTM 520 EXC 1998 - 1999 |
| Year | 1998 - 1999 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valves per cylinder |
| Displacement / Capacity | 510.4 cc / 31.1 cu in |
| Bore X Stroke | 95 x 72 mm |
| Compression Ratio | — |
| Cooling System | Liquid cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | CDI Kokusan 4K-3 |
| Induction | Keihin MX FCR 39 |
| Start System | Electric & kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 43 mm WP USD fork, 295 mm / 11.6 in travel |
| Rear Suspension | Fully adjustable WP, 320 mm / 12.6 in travel |
| Front Brakes | Single 260 mm disc |
| Rear Brakes | Single 220 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 925 mm / 36.4 in |
| Wheelbase | 1481 mm / 58.3 in |
| Ground Clearance | — |
| Dry Weight | 112 kg / 247 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90 - 21 |
| Rear Tyre | 140/80 - 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 8.5 L / 2.2 US gal / 1.9 Imp gal |
| Fuel Consumption | — |
| Top Speed | — |
A 510 cc four-stroke single-cylinder off-road bike from KTM's late-1990s range. The source review favours it over two-strokes for its light weight, low-to-mid-range power and electric start, while pointing to oil changes and price as drawbacks.
