Matchless Silver Hawk
The Matchless Silver Hawk is a motorcycle from the British manufacturer Matchless , which was first presented in November 1930 at the Olympia Motor Show in London . As a special feature, it has an air-cooled V four-cylinder four-stroke engine .
The engine was developed by Bert and Harry Collier . The engine with an output of 26 hp has a displacement of 592 cm³ and a cylinder angle of 18 degrees. The engine was a further development of the two-cylinder engine from the Matchless Silver Arrow . The crankshaft has three bearings. The four pistons run in a cylinder block. The engine has an overhead camshaft that is driven by a vertical shaft. The camshaft operates the valves via rocker arms . The front and rear cylinders each discharge the exhaust gases into a common, heavily ribbed collector. The manifolds converge behind the engine; the exhaust gases flow through a common silencer. The engine is supplied with oil through dry sump lubrication .
The four-speed transmission comes from Sturmey-Archer and is shifted by hand. In the last model year there was also a foot switch for an extra charge. The secondary drive takes place via a chain running in a closed chain case, which is tensioned by a spring-loaded chain tensioner.
Another special feature at that time is the rear suspension with a central spring and damping element and the integral brake system, in which the foot brake lever simultaneously actuates the front brake.
Due to the global economic crisis , the motorcycle was not granted any economic success. Production was therefore stopped again in 1935 after only 546 units had been produced.
Technical specifications
- Power: 26 hp
- Displacement: 592 cm³
- Bore: 50.8 mm
- Stroke: 73 mm
- Weight: 172 kg
- Wheelbase: 1422 mm
- Top speed: 122 km / h