Matchless G90 Super Clubman 500

   

Make Model

Matchless G90 Super Clubman

Year

1936 - 39

Engine

Single cylinder, twin port

Capacity

498 cc / 30.4 cub in.

Bore x Stroke

82.5 x 90 mm

Cooling System

Air cooled

Compression Ratio

7.5:1

Lubrication

Dry sump

Oil Capacity

2.8 L / 6.0 US pints

Exhaust

Single, chrome

Ignition 

Magneto, Lucas

Starting

Kick

Battery

Lucas, 6V 12 Ah

Spark Plug

Lodge H53

Maximum Power

3.7 kW / 5 hp

Clutch

5-Plate

Transmission 

4-Speed

Final Drive

Chain

Gear Ratios

1st 3.16 / 2nd 2.08 / 3rd 1.1.51 / 4th 1.0:1

Frame

Single top and down pipe, double cradle

Front Suspension

Coil springs

Rear Suspension

None, Spring loaded saddle

Front Brakes

Drum

Rear Brakes

Drum

Wheels

Steel, wire spokes

Fuel Capacity 

9.1 L / 2.4 US gal

Top Speed

145 km/h / 90 mph

Colours

Black, Red

 
   

In the 1936 model range two distinct groups of single-cylinder models were introduced, the “Clubman” range for the sportsmen and the “Tourist” range for the less hurried enthusiasts.
There were no less than four 500cc Clubman models, all with twin port engine and hairpin valve springs.
The fastest model was the “Super Clubman”: it had a specially tuned engine with high compression piston, 14 mm spark plug and specially polished components such as flywheels, conrods and ports.
The compression ratio was 7.5:1 and the top speed was 90 mph.