| Manufacturer | ELF |
|---|---|
| Production | 1996-1997 |
| Class | 500 cc |
| Engine | Swissauto 499.3 cc (30.47 cu in) two-stroke 108° V4 |
| Bore / stroke | 54 mm × 54.5 mm (2.13 in × 2.15 in) |
| Power | over 160 hp (120 kW) @ 12,500 rpm |
| Wheelbase | 1,410 mm (56 in) |
| Weight | 130 kg (290 lb) (dry) |
| Fuel capacity | 34 L (7.5 imp gal; 9.0 US gal) |
The ELF 500 ROC was a motorcycle that competed in the 1996 and 1997 500 cc Road Racing World Championship.