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Final Write Document | 1992-11-04 | 26.4 KB | 54 lines |
- T
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- B
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- by Allen Jackson
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- For 7th grade English Composition
- taught by Mrs. Knarley
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- A bicycle is a machine to ride on. It is also called a "bike" or a "wheel".
- It has two wheels, one behind the other, and that is how it got its name,
- because "bi" means "two" and "cycle" means "wheel". The wheels are held in
- line by a metal frame. The rider sits on a little seat that is attached to the
- frame. He steers by holding onto handlebars that turn the front wheel of the
- bicycle. He makes the rear wheel turn by pushing pedals up and down with his
- feet, and that makes the bicycle go forward. There are more than thirty
- million bicycles in the United States, and in Europe there are more bicycles
- than automobiles.
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- Most people from six to sixty can ride a bike, or can be taught to ride in a
- few hours. One of the most important things to learn is how to keep your
- balance, but this is soon learned.
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- When the pedals of the bicycle are pushed up and down, they make a little wheel
- go around. This little wheel is attached by a chain to the bigger rear wheel
- of the bicycle, so the rear wheel turns too and drives the bicycle. Some
- bicycles have "coaster brakes". Pressing the pedals part of the way backward
- disconnects the chain and the rear wheels turn freely while the little wheel,
- operated by the pedals, does not turn at all. This lets one "coast" down a
- hill without moving his feet on the pedals. Then if he presses still farther
- backward on the pedals he applies a brake to the rear wheel and this will slow
- down the bicycle or stop it completely. Some bicycles have other brakes,
- called caliper brakes, that are operated by gripping a lever on the handlebars.
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- Bicycle racing is still one of the most popular sports in Europe. Racing bikes
- are very light and have a smaller pedal wheel, which increases the gear ratio
- and makes them go faster. A once popular kind of indoor racing was the Six-day
- Bike Race. A pair of drivers, riding as a team, kept going day and night for
- six full days; often one would sleep while the other rode but neither got very
- much rest.
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