- By cannonball
There are few motorcycle engines as iconic as the BMW Airhead. The opposed twins were first built by the German marque in 1923 based loosely on a design borrowed from the British motorcycle maker Douglas, the Germans turned the engine 90 degrees so the heads would be out in the clean airflow to aid cooling.
Over the intervening decades the opposed twin became synonymous with BMW motorcycles, and today over 90 years since they built their first the engine configuration is still a favourite, and is still used in many of the marque’s most successful models.
What a great looking motorcycle.