A horizontal engine configuration with the two pistons opposing each other, commonly found on BMW twin-cylinder motorcycles. The term comes from the resemblance of fists coming towards each other.
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A horizontal engine configuration with the two pistons opposing each other, commonly found on BMW twin-cylinder motorcycles. The term comes from the resemblance of fists coming towards each other.
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[...] at 180° to one another. It is also described as a flat twin or flat four, etc. Also known as a boxer [...]
[...] is the ‘traditional’ (since 1923) BMW motorcycle engine, where it is known as the Boxer. Also known as Horizontally [...]