Matchless G80 (1946-66)

The Matchless G80 motorcycle was produced between 1946 and 1966 in various models such as G80C, G80CS, and G80S. The engine was a single cylinder, air-cooled, 4-stroke with a capacity of 498 cc and a bore x stroke of 82.5 x 93 mm. From 1956, the compression ratio was increased to 7.3:1. The motorcycle had a dry sump with an external oil tank for lubrication and a single, right-side exhaust. The fuel system used an Amal 27 mm carburetor and ignition was through magneto. The motorcycle had a 4-speed transmission and chain final drive. The duplex frame had a wheelbase of 1397 mm and the front suspension varied with the model – either a teledraulic fork or girder fork. The rear suspension was either none with a spring-loaded saddle or swingarm with spring-loaded. The brakes were drum, both front and rear, and the wheels were steel with wire spokes. The dry weight of the motorcycle was 177 kg and it could reach a top speed of 126 km/h. These details were sourced from Wikipedia.

Technical specifications:

Make Model: Matchless G80, G80C, G80 CS, G80S

Year: 1946 – 66
Engine: Single cylinder, 4-stroke, pushrod
Capacity: 498 cc / 30.3 cub in.
Bore x Stroke: 82.5 x 93 mm
Cooling System: Air cooled
Compression Ratio: 1946 onwards: 5.9:1 From 1956: 7.3:1
Lubrication: Dry sump with external oil tank
Exhaust: Single, right side
Fuel System: Amal 27 mm carburetor
Ignition: Magneto
Starting: Kick
Maximum Power: 21 kW / 28 hp @ 5600 rpm
Transmission: 4-Speed
Final Drive: Chain
Frame: Duplex frame
Wheelbase: 1397 mm / 55.0 in.
Front Suspension: G80L: Teledraulic fork G80: Girder fork
Rear Suspension: G80: None, springloaded saddle G80S: Swingarm, springloaded
Front Brakes: Drum
Rear Brakes: Drum
Wheels: Steel, wire spokes
Dry Weight: 177 kg / 390 lbs
Top Speed: 126 km/h / 78 mph
Source: Wikipedia