BSA A10 Golden Flash

The BSA A10 Golden Flash first appeared in 1950. In terms of engine layout, it was a classic British parallel twin. BSA were based in Birmingham – at the Small Heath factory. ’71 saw the …

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Ariel Square Four

The Ariel Square Four was designed by Edward Turner. His finest hour was yet to come. He would go on to oversee Triumph – in its Sixties glory days. The first version of the Square …

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Douglas Dragonfly

The Douglas Dragonfly broke the motorcycle mould. BMW is now almost synonymous with the flat-twin layout. Other marques, too, though, have used that venerable engine configuration. Not least, Douglas. The firm was based in Bristol, …

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