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Portage strap: a strap (usually made of leather) attached to the inside of the bike frame, designed to make carrying the bike over one's shoulder easier; Pulley wheel: see Jockey wheel; Power meter: a device on a bicycle that measures the power output of the rider; Quick release: a skewer with a lever on one end that loosens when the lever is ...
History of the bicycle. 1886 Swift Safety Bicycle. Vehicles that have two wheels and require balancing by the rider date back to the early 19th century. The first means of transport making use of two wheels arranged consecutively, and thus the archetype of the bicycle, was the German draisine dating back to 1817.
A lugged steel bicycle has a frame made of steel. An aluminium bicycle has a frame made of aluminium alloys. A plastic bicycle was an attempt in the early 1980s to introduce a bicycle made entirely out of plastic materials instead of metal. A wooden bicycle has a frame made out of wood.
Wheelbuilding. Radial (left) and semi-tangential (right) bicycle spoke patterns. Wheelbuilding is the process of assembling wire wheels (generally a bicycle wheel, but including wheelchairs, and some cars) and motorcycle motorcycles. The components of a wire wheel are the rim, spokes, nipples, and hub.
Pinterest is an American social media service for publishing and discovery of information [6] in the form of pinboards. [7] This includes recipes, home, style, motivation, and inspiration on the Internet using image sharing. [8] Pinterest, Inc. was founded by Ben Silbermann, Paul Sciarra, and Evan Sharp, [5] and is headquartered in San ...
Penny-farthing. The penny-farthing, also known as a high wheel, high wheeler or ordinary, is an early type of bicycle. [1] It was popular in the 1870s and 1880s, with its large front wheel providing high speeds, owing to it travelling a large distance for every rotation of the wheel. These bicycles had solid rubber tires and as a consequence ...
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A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered or motor-assisted, pedal-driven, single-track vehicle, with two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist. Bicycles were introduced in the 19th century in Europe. By the early 21st century there were more ...