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Memorable MC: BSA A10 Golden Flash Photo Gallery

The iconic Thunderbird wasn’t the only 650 Twin rumbling out of Britain in the ‘50s and ‘60s. This month or vintage motorcycle expert examines the BSA A10 Golden Flash. Read the full story in Memorable Motorcycles: BSA A10 Golden Flash.

The A10 handles a treat – and would be even better except for the penny-pinching brakes both front and back.
The BSA engine is arguably a neater, more efficient design than its Triumph competitor. A single, four lobe camshaft – located neatly behind the cylinder barrel – lifts the push-rods and this gives a quiet, oil-tight engine.
The four-speed gearbox is sweet, reliable and positive and the clutch, again with modern improvements to the friction material, utterly trustworthy.
Hopwood’s Parallel Twin runs near silently and never a drop of oil will appear on the motor. Nor for that matter does the BSA primary chain case leak oil. It is a robust, all alloy construction and, once prepared properly, stays bone dry.
The A10’s engine is, by the standards of the day, a real peach. It began life as a 500 just before the Second World War as a Val Page concept – and Valentine Page was the greatest of all the British motorcycle designers.
By contrast the BSA frame is peerless, not only as a home for the twin-cylinder A7 and A10 engines but, with a slight kink in the right hand side bottom rail, also as the frame for the legendary BSA Gold Stars.
BSA A10 Golden Flash
BSA A10 Golden Flash
The A10’s engine has iron barrels and cylinder head. This was a real drawback in its heyday in terms of overheating.