| MODEL | VOR MX 503 MOTOCROSS 2001 |
| Year | 2001 |
| Engine Type | Single cylinder, four-stroke, 4 valves |
| Displacement / Capacity | 503 cc / 30.7 cu in |
| Bore X Stroke | 95 x 71 mm / 3.7 x 2.8 in |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | 40.9 kW / 56 hp @ 8000 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 305 mm / 12.0 in wheel travel |
| Rear Suspension | 315 mm / 12.4 in wheel travel |
| Front Brakes | Single disc, 270 mm / 10.6 in |
| Rear Brakes | Single disc, 220 mm / 8.7 in |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 940 mm / 37.0 in |
| Wheelbase | 1485 mm / 58.5 in |
| Ground Clearance | — |
| Dry Weight | 109 kg / 240.3 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 130/90-19 |
| FUEL SYSTEM | |
| Fuel Capacity | 9 Litres / 2.4 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2001 motocross version of the 503 cc four-valve single, the same engine family as the EN 503 and SM 503 pages. Long-travel suspension and a 21/19 wheel set mark it as a competition off-roader rather than a road-legal enduro.
