Rocket propulsion was all the rage in pre-war Germany. People attached rockets, with varying degree of success and danger, to skates (both roller and ice), cars, boats and bicycles.
In 1931, German engineer Herr Richter added 12 rockets to his bicycle to create his "Raketenrad." The white box on the frame contained the battery used to ignite the rockets, all solid fuel
Richter tested it on the Avus racetrack in Berlin. When he reached a speed of 55 mph, he lost control and was thrown off as the rockets exploded. He was not seriously injured.
The 1930s also saw the first rocket bicycle race, held in Berlin Stadium. Read more...
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