The Portland Art Museum recently had a special exhibit, The Shape of Speed, which featured aerodynamic vehicles from the 1930s. Included with the unique vehicles were two motorcycles.
1930 Henderson KJ Streamline
During the 1930s, customizing motorcycles involved stripping non-essential items from the bikes resulting in what were called “bobs” or “bobtails.” At this time, one of the popular and fastest motorcycles was the Henderson (see History 101: Henderson Motorcycles). The 1930 Henderson KJ Streamline was so named for its aerodynamic profile made possible by the narrow inline engine and drivetrain.
Orley Ray Courtney, working in his spare time in 1934, customized a 1930 Henderson KJ Streamline with a radically streamlined body shell. According to the display:
“The result was beautiful but impractical, a pure concept vehicle built to express modern design ideas, streamlining, and Courtney’s artistic vision.”
1934 BMW R7 Concept Motorcycle
There are just three contemporary automobile companies that produce motorcycles using the same brand name: BMW, Honda, and Suzuki. The BMW R7 was designed as a one-of-a-kind concept bike by Alfred Böning in 1934. According to the museum display:
“The frame was constructed of pressed steel. The front and rear fenders were gracefully skirted. The fuel tank, along with streamline and fluted partial side covers for the engine, was sensuously styled and beautifully integrated. The exhaust pipes are exquisitely curved, and the shape of the mufflers complements the flowing lines of the bodywork. Even the handlebars are aerodynamic, undoubtedly helping with the machine’s streamlining.”
More from The Shape of Speed
Shape of Speed: An Overview (Photo Diary)
Shape of Speed: Some Unique American Automobiles (Photo Diary)
Shape of Speed: Some European Automobiles (Photo Diary)
Shape of Speed: Some American Automobiles (Photo Diary)
Shape of Speed: Custom European Automobiles (Photo Diary)