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The bicycle world provides a great example. For years, major bicycle brands focused on the latest in high-tech equipment: mountain bikes with suspension and ultrastrong disc brakes, or lightweight titanium road bikes with carbon-fiber everything. And it was assumed that bikes should have multiple gears: three, ten, or twenty-one. But recently, fixed-gear bicycles have boomed in popularity, despite being as low-tech as you can get. These bikes have just one gear. Some models don’t have brakes. The advantage: They’re simpler, lighter, cheaper, and don’t require as much maintenance.
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