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The first bike ever made by German Inventor Karl von Drais. It had no pedals, and its frame was a wooden beam. https://germanculture.com.ua/famous-germans/karl-drais-the-bicycle-and-typewriter-inventor/
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J.K. Starley made an upgraded version of the original. This one is able to move fast, for it had pedals and gears. It was much safer to use as it is called the safety bicycle.
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Invented by Joe Breeze, the mountain bike. It's most commonly used nowadays. It includes gears where you are able to switch them around, breaks, and many other things to play around with.
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The electric version of a bike. It's electrical, meaning you don't physically pedal. It's battery based, and is environmentally friendly.
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It's thin, fast, ecosystem friendly, smooth, computer aided, theft proof, and everything that you'd want it to be.
