| MODEL | MATCHLESS G 80 K 1990 |
| Year | 1990 |
| Engine Type | Single cylinder, four-stroke, OHC, 4 valves |
| Displacement / Capacity | 494 cc / 30.14 cu in |
| Bore X Stroke | 89.0 x 79.4 mm / 3.5 x 3.1 in |
| Compression Ratio | 9.2:1 |
| Cooling System | Air |
| Max Power | 24.8 kW / 34 hp @ 7300 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | Single disc |
| Rear Brakes | Drum (expanding) |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 172 kg / 379.2 lb |
| WHEEL SPECS | |
| Front Tyre | 100/90-19 |
| Rear Tyre | 110/90-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 3.96 US gal |
| Fuel Consumption | — |
| Top Speed | 135 km/h / 83.9 mph |
A late-1980s single-cylinder 500 in the revived Matchless G80 line, this K version is listed with a single front disc and is categorised as a tourer. It shares the air-cooled overhead-cam four-valve engine and five-speed chain drive with the E version. The listing gives identical figures for each of its three model years.
