BMW: Prototype with new big boxer powertrain
HINGUCKER Around the prototype of a completely new BMW boxer engine, the American motorcycle customizers from "Revival Cycles" have created a unique vehicle called "The Revival Birdcage". The bike was unveiled on the occasion of the Handbuilt Show in Austin/Texas. BMW plans to present the big boxer in a production vehicle for the cruiser segment as early as next year. Air-oil cooling and [...]
The bike was unveiled at the Handbuilt Show in Austin, Texas. BMW plans to present the big boxer in a production vehicle for the cruiser segment as early as next year.
Air-oil cooling and large displacement
Alan Stulberg's team was inspired by Ernst Henne's record-breaking machines of the late 1920s and 1930s. The development of the vehicle concept took just under six months. There was already much speculation on site about the large-volume prototype engine.
Both the external geometry and the visible elements, such as the pushrods running above the cylinders in chrome-plated protective tubes, are reminiscent of the design of BMW motorcycle boxer engines from the 1960s - only with significantly larger displacement and modern air-oil cooling.
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