A bicycle, also called a cycle or bike, is a human-powered or motor-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist.
The penny-farthing, also known as a high wheel, high wheeler and ordinary, was the first machine to be called a "bicycle". It was popular in the 1870s and 1880s, with its large front wheel providing high speeds and comfort. It became obsolete from the late 1880s with the development of modern bicycles, which provided similar speed amplification via chain-driven gear trains and comfort through pneumatic tyres, and were marketed in comparison to penny-farthings as "safety bicycles" due to the reduced danger of falling and the reduced height to fall from.
A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles: a main triangle and a paired rear triangle. This is known as the diamond frame. Frames are required to be strong, stiff and light, which they do by combining different materials and shapes.
A bicycle wheel is a wheel, most commonly a wire wheel, designed for a bicycle. A pair is often called a wheelset, especially in the context of ready built "off the shelf" performance-oriented wheels.
The Allright was a German automobile manufactured from 1908 to 1913 at the Cologne-Lindenthal factory that produced Allright, Tiger, Roland, and Vindec-Special bicycles and motorcycles.
A bicycle fork is the part of a bicycle that holds the front wheel.
A safety bicycle is a type of bicycle that became very popular beginning in the late 1880s as an alternative to the penny-farthing ("ordinary") and is now the most common type of bicycle. Early bicycles of this style were known as safety bicycles because they were noted for, and marketed as, being safer than the high wheelers they were replacing. Even though modern bicycles use a similar design, the term is rarely used today and may be considered obsolete.
The Raleigh Chopper is a children's bicycle, a wheelie bike, manufactured and marketed in the 1970s by the Raleigh Bicycle Company of Nottingham, England. Its unique design became a cultural icon and is fondly remembered by many who grew up in that period. The design was influenced by dragsters, "chopped" motorcycles, beach buggys, and even chariots, as can be seen on the centre page of the 1969 Raleigh US catalog.
The Huffy Corporation is a supplier of bicycles with headquarters in Dayton, Ohio.
29ers or two-niners are mountain bikes and hybrid bikes that are built to use 700c or 622 mm ISO wheels, commonly called 29" wheels. Most mountain bikes once used ISO 559 mm wheels, commonly called 26" wheels. The ISO 622 mm wheel is typically also used for road-racing, trekking, cyclo-cross, touring and hybrid bicycles. In some countries, mainly in Continental Europe, ISO 622 mm wheels are commonly called 28" wheels or "28 Incher".
This is a glossary of terms and jargon used in cycling, mountain biking, and cycle sport.
Sheldon Brown was an American bicycle mechanic, technical expert and author. He contributed to print and online sources related to bicycling and bicycle mechanics, in particular the web site Sheldon Brown's Bicycle Technical Info. His knowledge of bicycles was described as "encyclopaedic" by The Times of London.
The term "bike boom" or "bicycle craze" refers to any of several specific historic periods marked by increased bicycle enthusiasm, popularity, and sales.
A tensioner is a device that applies a force to create or maintain tension. The force may be applied parallel to, as in the case of a hydraulic bolt tensioner, or perpendicular to, as in the case of a spring-loaded bicycle chain tensioner, the tension it creates. The force may be generated by a fixed displacement, as in the case of an eccentric bicycle bottom bracket, which must be adjusted as parts wear, or by stretching or compressing a spring, as in the case of a spring-loaded bicycle chain tensioner; by changing the volume of a gas, as in the case of a marine riser tensioner; by hydraulic pressure, as in the case of a hydraulic bolt tensioner; or by gravity acting on a suspended mass, as in the case of a chair lift cable tensioner. In the power sector, the tensioner is a machine for maintaining constant tension of the conductors during work of hanging the transmission network..
A trailer bike is a one-wheeled, or sometimes two-wheeled, bicycle trailer designed to carry one or more children in positions that closely resemble that of a bicycle rider. It can be described as the, "back half of a bicycle." The rider of a trailer bike usually has a saddle, handlebars, and pedals. Some fold for more compact storage.
A bicycle handlebar or bicycle handlebars is the steering control for bicycles; it is the equivalent of a steering wheel for vehicles and vessels. Besides steering, handlebars also often support a portion of the rider's weight, depending on their riding position, and provide a convenient mounting place for brake levers, shift levers, cyclocomputers, bells, etc. Handlebars are attached to a bike's stem which in turn attaches to the fork.
A bicycle tire is a tire that fits on the wheel of a bicycle or similar vehicle. They may also be used on wheelchairs and handcycles, especially for racing. Bicycle tires provide an important source of suspension, generate the lateral forces necessary for balancing and turning, and generate the longitudinal forces necessary for propulsion and braking. Although the use of a pneumatic tire greatly reduces rolling resistance compared to the use of a rigid wheel or solid tire, the tires are still typically the second largest source, after air drag, of power consumption on a level road. The modern detachable pneumatic bicycle tire contributed to the popularity and eventual dominance of the safety bicycle.
The American Star Bicycle was invented in 1880 by G. W. Pressey and manufactured by the H. B. Smith Machine Company in Smithville, Burlington County, New Jersey. It was characterized by a small wheel in front to avoid the problem of tipping forward inherent in other high wheelers. A Star bicycle was photographed being ridden down the steps in front of the United States Capitol in 1885 to demonstrate its longitudinal stability, and Star bicycles were used for the sport of bicycle polo in the mid-1880s. Pressey sued Smith in 1887 for royalties. The name "Star" was attributed to the double star arrangement of the spokes.
Ash Winston Riser, also known by his former stage name Ashtrobot, is an American recording artist and music producer from Los Angeles, California. He embarked on his music career when he was 15 years old, forming a rock band called Pistol Pistol. Due to differences between members, the band broke up in 2009 and Riser subsequently began to put his focus on music production, fusing electronic and hip hop music, among other genres. Riser later began working with longtime friend, Derek Ali of Top Dawg Entertainment, who introduced him to West Coast rapper Kendrick Lamar, with whom he began heavily collaborating. Riser then signed a record deal with Israeli music producer Borgore's record label, Buygore and also has a production deal with Chest Rockwell Entertainment. Riser has played multiple sold out shows with fellow label-mates and musicians such as ETC! ETC!, Kennedy Jones, Ookay, Flinch, Protohype and Dirtyphonics.
