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Definition
Bicycle: A human-powered vehicle with two wheels, a frame, pedals, and a seat, designed for transportation, recreation, exercise, and competitive sports.
Expanded Explanation
Bicycles, also known as bikes, are a versatile and environmentally friendly means of transportation that have been in use since the early 19th century. They are used for various purposes, including commuting, fitness, recreation, and competition in various cycling disciplines. Bicycles come in various styles and designs, each suited for specific types of riding and terrain.
Bicycle Components
Bicycles consist of several essential components that work together to provide a smooth and efficient riding experience:
- Frame: The main structure of a bicycle, typically made from materials like steel, aluminum, carbon fiber, or titanium. The frame connects all other components and determines the overall geometry and handling characteristics of the bike.
- Wheels: Consist of a hub, spokes, and a rim, all working together to provide support and a connection to the tires. Wheel sizes and materials vary depending on the type of bicycle and intended use.
- Tires: Provide traction and cushioning, with different tread patterns and widths suited for various surfaces and riding conditions.
- Drivetrain: Includes pedals, crankset, chain, derailleurs, and cassette, all working together to transfer power from the rider’s legs to the rear wheel, propelling the bike forward.
- Brakes: Provide stopping power, with common types being rim brakes and disc brakes.
- Handlebars, stem, and saddle: Allow the rider to control the bike and provide a comfortable riding position.
Types of Bicycles
There are numerous types of bicycles, each designed for specific purposes or preferences:
- Road bikes: Designed for speed and efficiency on paved surfaces, featuring lightweight construction, drop handlebars, and narrow, smooth tires.
- Mountain bikes: Built for off-road use, with sturdy frames, suspension systems, and wide, knobby tires for traction on rough terrain.
- Hybrid bikes: Combines the features of road and mountain bikes, offering a comfortable and versatile option for various riding conditions.
- Folding bikes: Designed for easy storage and transportation, with folding frames that allow the bike to be compacted into a smaller size.
- Electric bikes: Equipped with an electric motor to assist with pedaling, making it easier to ride up hills or cover longer distances.
Examples
- Example 1: A commuter using a hybrid bicycle to travel to work in an urban environment.
- Example 2: An athlete participating in a mountain bike race on a challenging off-road course.
Related Terms
Visual Aids
Hybrid Bicycle for Men and Women
High Timber AL Youth/Adult Mountain Bike
External Resources
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