Brough Superior Austin Four

Brough Superior Austin Four

Description

1932 Brough Superior Austin Four

The Brough Superior Austin Four created a sensation when revealed at the 1931 Olympia Motorcycle Show. It was listed in the 1932 Brough Superior catalog as the ‘Straight Four’ but it was commonly known as the Brough Superior Austin Four, or BS4, or ‘3-wheeled Brough’.

The machine has a unique design, being powered by a modified Austin 7 automobile engine and gearbox unit, from which a driveshaft emerges on the center-line of the motor. Rather than design a new gearbox, Mr. George Brough had the inspiration to keep the central driveshaft and use a pair of close-couple rear wheels driven by a central final drive box.

George bored the engine out to 797 ccm and had a new alloy head developed with larger valves. He also paired modified engine with twin carburetors. The Austin Four had been intended as a sidecar motorcycle, but a few were built in the solo versions.

Out of ten Brough Superior Austin Four built, (eight in 1932 and two in 1933-1934), a total of nine have survived to this day. One of these luxurious Brough Superior Austin Four can be seen live at Motorworld by V.Sheyanov museum.

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Detailed Description
1932 Brough Superior Austin Four

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