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Bicycle Drivetrain Systems
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. History The history of bicycle drivetrain systems is closely linked to the history of the bicycle. Major changes in bicycle form have often been initiated or accompanied by advances in drivetrain systems. Several early drivetrains used straight-cut gears that meshed directly with each other outside of the hub. Some bicycles have used a double-sided rear wheel, with different-sized sprockets on each side. To change gears, the rider would stop and dismount, remove the rear wheel and reinstall it in the reverse direction. Derailleur systems were first developed in the late 19th century, but the modern cable-operated parallelogram derailleur was invented in the 1950s. * Draisine * Penny-farthing * Safety bicycle Power colle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Shimano Xt Rear Derailleur
, originally and later , is a Japanese multinational manufacturing company for cycling components, fishing tackle and rowing equipment, which also produced golf supplies until 2005 and snowboarding gear until 2008. Named after founder Shozaburo Shimano (, 1894–1958) and headquartered in Sakai, Osaka Prefecture, the company has 32 consolidated and 11 unconsolidated subsidiaries, with the primary manufacturing plants based in Kunshan (China), Malaysia and Singapore. In 2017, Shimano had net sales of US $3.2 billion, 38% in Europe, 35% in Asia, and 11% in North America. Bicycle components represented 80%, fishing tackle 19%, and other products 0.1%. The company is publicly traded, with 93 million shares of common stock outstanding. They are also the official neutral support for most of the UCI World Tour. Cycling Shimano sales constitute an estimated 85% of the global bicycle component market by value. Its products include drivetrain, brake, wheel, and pedal components fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Groupset
A groupset or gruppo (from the Italian for "group", sometimes misspelled grouppo) is a bicycle component manufacturer's organized collection of mechanical parts. It generally refers to all of the components that make up a bicycle excluding the bicycle frame, fork, stem, wheels, tires, and rider contact points, such as the saddle and handlebars. These parts typically include the following: * 2 gear levers or shifters ''and'' * 2 brake levers ''or'' * 2 integrated brake levers/shifters * 2 brakes, front and rear * 2 derailleurs, front and rear * 1 bottom bracket * 1 crankset * 1 chain * 1 cogset, freewheel or cassette With the following forming part of some groupsets: * 1 headset (more commonly included with vintage groupsets) * 1 seatpost * 2 hubs, front and rear (although, most manufacturers now offer groupset-branded pre-built wheels) * Pair of pedals * assorted cables and cable housing Except for special commemorative versions, manufacturers do not actually package the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Sociable
The sociable or buddy bike or side by side bicycle is a bicycle that supports two riders who sit next to one another, in contrast to a tandem bicycle, where the riders sit fore and aft. The name "sociable" alludes to the relative ease with which the two cyclists can speak with each other, unlike on the tandem. History ''Bicycling through Time'' by Paul and Charlie Farren has a picture of a sociable with a frame under each rider and two wheels between them from 1897. The Ford Museum in Detroit has a similar sociable on display. More modern single framed sociables may have started with Australian cyclist Hubert Opperman, although in its basic form the design has been around for longer, since the end of the 19th century. It was originally marketed by the Punnett Cycle Company. Historically it has been used as a courtship, courting bike; gentlemen would be able to spend time with ladies in an activity that allowed proximity. Present day For several years the Taiwanese "Buddy Bike" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Tandem Bicycle
A tandem bicycle or twin is a bicycle (occasionally a tricycle) designed to be ridden by more than one person. The term tandem refers to the seating arrangement (fore to aft, not side by side), 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. Terminology The term tandem refers to the seating arrangement (fore to aft, not side by side), not the number of riders. A bike with two riders side by side is called a sociable. Tandem bicycles are sometimes called "Daisy Bells". This is in reference to " Daisy Bell (Bicycle Built for Two)" which is a popular song, written in 1892 by British songwriter Harry Dacre, with the well-known chorus, "Daisy, Daisy / Give me your answer, do. / I'm half crazy / all for the love of you", ending with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Recumbent Bicycle
A recumbent bicycle is a bicycle that places the rider in a laid-back reclining position, and often called a Human-powered_land_vehicle, human-powered vehicle or HPV, especially if it has an aerodynamic fairing. Recumbents are available in a wide range of configurations, including: long to short wheelbase; large, small, or a mix of wheel sizes; overseat, underseat, or no-hands steering; and rear wheel or front wheel drive. A variant with three wheels is a recumbent tricycle, with four wheels a quadracycle. Recumbents can be faster than upright bicycles, but they were banned by the Union Cycliste Internationale (UCI) in 1934. Recumbent races and records are now overseen by the World Human Powered Vehicle Association (WHPVA), International Human Powered Vehicle Association (IHPVA) and World Recumbent Racing Association (WRRA). Some recumbent riders may choose this type of design for ergonomic reasons: the rider's weight is distributed comfortably over a larger area, supported by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Rowing Cycles
A rowing cycle is a wheeled vehicle propelled by a rowing motion of the body. Steering, braking, and shifting are usually done by the handlebars. Feet are on symmetrical foot rests, as opposed to rotating pedals. Unlike many Watercraft rowing, rowing boats, the rider faces forward. Rowing cycles exist in numerous designs, particularly with respect to frames and drive mechanisms. Commercial production numbers for rowing cycles are small compared to that of standard bicycles. History The use of a rowing-like action to propel a land vehicle goes probably to the 1870s, as George W. Lee used a sliding-seat in a tricycle. Roadsculler races were held in Madison Square Garden in the 1880s. A toy catalog from FAO Schwarz in 1911 advertised a four-wheeled "Row-Cycle" for children, operated using two levers in a standing position and with steering done by the feet. In the 1920s, Manfred Curry in Germany designed and constructed the Landskiff ("land boat"), a four-wheeled vehicle that would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Handcycle
A handcycle is a type of human-powered land vehicle powered by the arms rather than the Human leg, legs, as on a bicycle. Most handcycles are tricycle in form, with two coasting rear Bicycle wheel, wheels and one steerable powered front wheel. Despite usually having three wheels, they are also known as ''handbikes''. History Stephan Farffler was a Nuremberg watchmaker of the seventeenth century whose invention of a manumotive carriage in 1655 is widely considered to have been the first self-propelled bicycle. He is believed to have been either a Paraplegia, paraplegic or an Amputation, amputee. The three-wheeled device is believed to have been a precursor to the modern-day tricycle and bicycle. Later innovations in handcycle design would be driven by a need to provide transportation for soldiers injured during the American Civil War, and later, the First World War. While Farffler's carriage emerged from his background as a clockmaker, mid-nineteenth century designs would be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Rowbike
A rowbike is an example of a rowing cycle, hybrid fitness/transport machine that combines a bicycle, and a rowing machine. "Rowbike" is a trademark of the Rowbike company. The Rowbike was invented by Scott Olson, the creator of Rollerblade inline skates. "Rowling" is a combination of rowing and rolling, and is sometimes used in place of rowing when describing a Rowbike. Unlike traditional bicycles, where power is supplied primarily by the rider's legs turning pedals connected to the drive wheel through a looped chain, a Rowbike delivers power through a swinging lever that moves a chain back and forth over the rear cog in a reciprocating motion regulated by a bungee cord. The rowing lever is large enough that a rider will normally utilize muscles from their legs, arms, back and abdomen to maintain a steady rowing motion to keep the Rowbike in motion. Rowbikes are marketed as providing a full body workout through the rowing motion which is gentle on the rider's knees, hips and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Swingbike
The Swing Bike is a brand of bicycle which allowed for steering at both the front wheel and the rear wheel. The design was patented by Ralph Belden in 1974, brought to market in 1975, and discontinued by 1978. A swingbike or swing bike (common noun) has been genericized to come to mean any bike with a second steering axis in front of the saddle. A new bicycle by the same name has been launched by Americas Bike Co. in San Diego, California. The original Swing Bike was in the wheelie bike style, and the Swing Bike company also offered a normally-steered BMX bike in 1977. An early working name for the Swing Bike as ''Pivicycle''. See also * Outline of cycling * Sideways bike ''Sideways'' is a 2004 American comedy-drama directed by Alexander Payne and written by Jim Taylor and Payne. A film adaptation of Rex Pickett's 2004 novel, ''Sideways'' follows two men in their forties, Miles Raymond (Paul Giamatti), a depr ... References {{cycling-stub Bicycles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
ElliptiGO
ElliptiGO, Inc. is a manufacturer of stand-up and elliptical bicycles headquartered in Solana Beach, California. Elliptical bikes combine the motion of an indoor elliptical trainer with the outdoor mobility of a traditional bicycle. They are a type of treadle bicycle, powered by treadles (which are attached to the crank via a linkage rod), rather than pedals mounted directly on the crank arms. Treadle drive trains were historically intermediate between highwheeled penny-farthings (which were powered by pedals mounted directly on a crank through the wheel hub, like a modern child's tricycle) and the bicycle chain A bicycle chain is a roller chain that transfers power (physics), power from the Bicycle pedal, pedals to the Drive wheel, drive-Bicycle wheel, wheel of a bicycle, thus propelling it. Most bicycle chains are made from carbon steel, plain carbo ...; Elliptigos, like some other later treadle bicycles, use both treadles and a chain. History Co-founders Bryan Pate an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Los Angeles Times
The ''Los Angeles Times'' is an American Newspaper#Daily, daily newspaper that began publishing in Los Angeles, California, in 1881. Based in the Greater Los Angeles city of El Segundo, California, El Segundo since 2018, it is the List of newspapers in the United States, sixth-largest newspaper in the U.S. and the largest in the Western United States with a print circulation of 118,760. It has 500,000 online subscribers, the fifth-largest among U.S. newspapers. Owned by Patrick Soon-Shiong and published by California Times, the paper has won over 40 Pulitzer Prizes since its founding. In the 19th century, the paper developed a reputation for civic boosterism and opposition to Trade union, labor unions, the latter of which led to the Los Angeles Times bombing, bombing of its headquarters in 1910. The paper's profile grew substantially in the 1960s under publisher Otis Chandler, who adopted a more national focus. As with other regional newspapers in California and the United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Elliptical Trainer
An elliptical trainer or cross-trainer is a stationary exercise machine used to stair climb, walk, or run without causing excessive pressure to the joints, hence decreasing the risk of impact injuries. For this reason, people with some injuries can use an elliptical to stay fit, as the low impact affects them little. Elliptical trainers offer a non-impact cardiovascular workout that can vary from light to high intensity based on the speed of the exercise and the resistance preference set by the user. Elliptical trainers first entered the market in the 1990s, invented by Precor. Most elliptical trainers work the user's upper and lower body (although some models do not have moving upper body components). Though elliptical trainers are considered to be minimal-impact, they are an example of a weight-bearing form of exercise. They can be self-powered by user-generated motion or need to be plugged in for adjustment of motion and/or for supplying their electronic consoles and resi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
