Bicycle – Simple English Wikipedia, the free encyclopedia

Invention and History of Bicycles
– In 1817, German professor Baron Karl von Drais invented the first two-wheeled bicycle made of wood.
– French inventors in the 1860s added pedals to the front wheel, creating a bicycle with pedaling capability.
– The penny-farthing bicycle, with a large front wheel and small back wheel, was introduced but was difficult to ride.
– In the 1880s and 90s, the safety bicycle was invented with two wheels of the same size, making it easier and safer to ride.
– Scottish inventor John Boyd Dunlop reinvented the pneumatic tire in 1888, improving comfort and ride quality.

Basic Design of Bicycles
– Common components of bicycles include a seat, pedals, gearing, handlebar, wheels, and brakes mounted on a frame.
– The cyclist’s feet push the pedals, which rotate the chain, turning the back wheel and propelling the bike forward.
– The front wheel is connected to the handlebar, allowing the cyclist to steer by turning the handlebar.
– Most bicycles have a gear shifter to change the resistance and make pedaling easier or harder.
– Brakes are used to slow down or stop the bike and are typically operated by hand levers.

Types of Bicycles
– The city bicycle is designed for commuting and errands in urban areas, featuring a comfortable seat, lights, bell, and cargo carriers.
– Mountain bicycles are built for riding on rough roads, equipped with multiple speeds, wide tires, and strong wheels.
– Folding bicycles can be easily stored in small spaces or carried on public transport.
– Electric bicycles have electric motors, allowing riders to choose between motor-only, pedal-only, or combined modes.
– Road bicycles have narrow wheels and lightweight frames, making them efficient for longer distances and popular in racing.

Bicycle Safety
– Thousands of people are injured and hundreds die in bicycle accidents each year.
– Riding on the same side of the street as cars and obeying traffic signs helps prevent accidents.
– Proper lighting and reflective clothing are important for visibility, especially in low-light conditions.
– Wearing a helmet reduces the likelihood of severe head injuries in case of a crash.
– Bicycle paths provide a safer alternative to riding on busy roads, connecting residential areas with essential destinations.

Related Pages and Organizations
– World Bicycle Day is an annual observance promoting the benefits of cycling.
– The Tour de France is a famous professional bicycle race held annually.
– Unicycles, tricycles, and tandem trikes are variations of bicycles with different numbers of wheels.
– Wikimedia Commons has media related to bicycles.
– The International Human Powered Vehicle Association (IHPVA) keeps records of land speed achievements in human-powered vehicles.Sources: