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A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered or motor-powered assisted, 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.
A tandem bicycle or twin is a form of bicycle designed to be ridden by more than one person. The term tandem refers to the seating arrangement, not the number of riders. Patents related to tandem bicycles date from the mid 1880s. Tandems can reach higher speeds than the same riders on single bicycles, and tandem bicycle racing exists. As with bicycles for single riders, there are many variations that have been developed over the years.
A recumbent bicycle is a bicycle that places the rider in a laid-back reclining position. Most recumbent riders choose this type of design for ergonomic reasons: the rider's weight is distributed comfortably over a larger area, supported by back and buttocks. On a traditional upright bicycle, the body weight rests entirely on a small portion of the sitting bones, the feet, and the hands.
A tricycle, sometimes abbreviated to trike, is a human-powered three-wheeled vehicle.
A bicycle brake reduces the speed of a bicycle or prevents it from moving. The three main types are: rim brakes, disc brakes, and drum brakes.
A cargo bike is a human powered vehicle designed and constructed specifically for transporting loads. Cargo bike designs include a cargo area consisting of an open or enclosed box, a flat platform, or a wire basket, usually mounted over one or both wheels, low behind the front wheel, or between parallel wheels at either the front or rear of the vehicle. The frame, drivetrain and wheels must be constructed to handle loads larger than those on an ordinary bicycle.
A bicycle fork is the part of a bicycle that holds the front wheel.
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. The term bicycle was coined in France in the 1860s, and the descriptive title "penny farthing", used to describe an "ordinary bicycle", is a 19th-century term.
A swing axle is a simple type of independent suspension designed and patented by Edmund Rumpler in 1903. This was a revolutionary invention in automotive suspension, allowing driven (powered) wheels to follow uneven road surfaces independently, thus enabling the vehicle's wheels to maintain better road contact and holding; plus each wheel's reduced unsprung weight means their movements have less impact on the vehicle as a whole. The first automotive application was the Rumpler Tropfenwagen, later followed by the Mercedes 130H/150H/170H, the Standard Superior, the Volkswagen Beetle and its derivatives, the Chevrolet Corvair, and the roll-over prone M151 jeep amongst others.
Dirtsurfing is the sport of riding a Dirtsurfer brand inline board. This new Australian boardsport is correctly known as inline boarding because Dirtsurfer is a trademark protected brand name.
A kick scooter is a human-powered street vehicle with a handlebar, deck, and wheels propelled by a rider pushing off the ground with their leg. Today the most common scooters are made of aluminum, titanium, and steel. Some kick scooters made for younger children have 3 to 4 wheels and are made of plastic and do not fold. High-performance kickbikes are also made.
Bicycle and motorcycle dynamics is the science of the motion of bicycles and motorcycles and their components, due to the forces acting on them. Dynamics falls under a branch of physics known as classical mechanics. Bike motions of interest include balancing, steering, braking, accelerating, suspension activation, and vibration. The study of these motions began in the late 19th century and continues today.
A motorcycle fork connects a motorcycle's front wheel and axle to its frame, typically via a yoke, also known as a triple clamp, which consists of an upper yoke joined to a lower yoke via a steering stem, a shaft that runs through the steering head, creating the steering axis. Most forks incorporate the front suspension and front brake, and allow the front wheel to rotate about the steering axis so that the bike may be steered. Most handlebars attach to the top clamp in various ways, while clip-on handlebars clamp to the fork tubes, either just above or just below the upper triple clamp.
Bicycle suspension is the system, or systems, used to suspend the rider and bicycle in order to insulate them from the roughness of the terrain. Bicycle suspension is used primarily on mountain bikes, but is also common on hybrid bicycles.
The sideways bike is an invention, patented in 2005, by Michael Killian, a software engineer from Dublin. He was inspired by the way that snowboarding is preferred to skiing due to the greater artistic potential, and decided to design a snowboard equivalent for the conventional bicycle. The result: a bike ridden sideways with the rider operating both wheels. The bike, unlike a conventional bike, uses front-to-back balance like a snowboard. Conventional bikes use left-to-right balance, like skis. The bike is aimed the youth market and has won a number of invention awards.
Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels. Most also include some type of a mechanism to convert speed and torque via gear ratios.
A wheelie bike, also called a dragster, muscle bike, high-riser, spyder bike or banana bike, is a type of stylized children's bicycle designed in the 1960s to resemble a chopper motorcycle and characterized by ape hanger handlebars, a banana seat with sissy bar, and small wheels. Notable examples include the Schwinn Sting-Ray and Krate lines and the Raleigh Chopper line. Other notable manufacturers and retailers that offered models include AMF, CCM, Columbia, Huffy, Iverson, J. C. Penney, Malvern Star, Monark, Murray, Ross, Sears, and Vindec.
A folding bicycle is a bicycle designed to fold into a compact form, facilitating transport and storage. When folded, the bikes can be more easily carried into buildings, on public transportation, and more easily stored in compact living quarters or aboard a car, boat or plane.
References
- ↑ "Swing Bike (original advertisement)". Boys' Life . August 1976. Retrieved 2012-07-19.
- ↑ "The Swing Bike Rider". 2012. Retrieved 2012-07-19.
- ↑ "United States Patent #3,801,130: BICYCLE WITH PIVOTABLE REAR WHEEL" . Retrieved 2012-07-19.
A two wheeled, rider propelled vehicle having both wheels pivotably mounted upon a medial principal frame.
- ↑ Bob Hufford (July 11, 2010). "Swing Bike: The Wackiest Thing on Two Wheels" . Retrieved 2012-07-19.
- ↑ Stephen Spillman (July 14, 2012). "Hockley County celebrates Settlers Day". Lubbock Avalanche-Journal . Retrieved 2012-07-19.
Kyle Drennan rides his swing bike in the Hockley County Celebration parade in Levelland Saturday.
- ↑ "Swing bike". Bicycle Forest. Retrieved 2012-07-19.
This is George Aitken riding his swing bike in the Canada Day parade in Cambridge, Ontario.
- ↑ Jerry Hirsch (December 13, 2007). "Wheels for swingers". Los Angeles Times . Retrieved 2012-07-19.
Americas Bike Co. is banking on its hinged design to catch on with riders.
- ↑ "Swing Bike Brochure" . Retrieved 2012-07-19.
- ↑ "Swing Bike BMX Bike" . Retrieved 2012-07-19.
- ↑ "Early Swing Bike (Pivicycle) Magazine Reference!". American Bicyclist and Motorcyclist. 1971. Retrieved 2012-07-19.
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