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Brough Motorcycles

Brough 1916 Flat Twin Piston and Conrod

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Brough 1916 Flat Twin Piston and Conrod

(L) Connecting rod of the new flat twin Brough, showing split big end.

(R) Piston of the new "5," which has two rings at the top, one at the bottom, and a "keeper ring" for the gudgeon pin.

Brough 1916 Flat Twin

Credit: The MotorCycle