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The Safety Bicycle
99% Invisible
The Bicycle Is a Machine That Anyone Can Ride
In 1879, a new technology came along in the form of the chain drive. The genius of the bicycle is that the rider is both the passenger and the engine of the machine. But also there were a number of other engineering breakthroughs in this period. And here we come to tires that have an inner tube filled with air which provides a smoother ride.
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