Boxer twin
Revision as of 20:22, 27 November 2010 by Addicted2speed (talk | contribs)
A horizontally opposed 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. Also known as a pancake engine. BMW motorcycle engine, where it is known as the Boxer. Also known as Horizontally Opposed.