| MODEL | MATCHLESS G3 350 1967 |
| Year | 1967 |
| Engine Type | Single cylinder, four-stroke |
| Displacement / Capacity | 347 cc / 21.17 cu in |
| Bore X Stroke | 69.0 x 93.0 mm / 2.7 x 3.7 in |
| Compression Ratio | 6.5:1 |
| Cooling System | Air |
| Max Power | 13.1 kW / 18 hp @ 5750 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | Wet multiplate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic |
| Rear Suspension | Twin shock absorbers |
| Front Brakes | Drum (expanding) |
| Rear Brakes | Drum (expanding) |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The G3 was Matchless's long-running 350 cc single, a low-compression four-stroke aimed at everyday road use with telescopic forks, twin rear shocks and drum brakes. By the 1960s it was a traditional-style machine with a modest 18 hp, kick-started and chain-driven.
