|
Osymetric
Osymetric is a French make of ovoid bicycle chainring which has a non-circular shape whose angle is tailored to the pedal stroke of the individual cyclist. These were designed by engineer Jean-Louis Talo who claims that this improves cycling performance. Such chainrings were used by professional cyclists Bradley Wiggins and Chris Froome for their ''Tour de France'' victories. See also * Biopace Biopace is a tradename for a type of ovoid bicycle chain ring manufactured by Shimano from 1983 to 1993 The design was intended to help overcome the "dead zone" where the crank arms are vertical and riders have little mechanical advantage. Bi ... References Cycle parts manufacturers {{cycling-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crankset
The crankset (in the US) or chainset (in the UK), is the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion used to drive the chain or belt, which in turn drives the rear wheel. It consists of one or more sprockets, also called ''chainrings'' or ''chainwheels'' attached to the '' cranks'', ''arms'', or ''crankarms'' to which the pedals attach. It is connected to the rider by the pedals, to the bicycle frame by the bottom bracket, and to the rear sprocket, cassette or freewheel via the chain. Parts Cranks The two ''cranks'', one on each side and usually mounted 180° apart, connect the bottom bracket axle to the pedals. Lengths Bicycle cranks can vary in length to accommodate different sized riders and different types of cycling. Crank length is measured from the center of the pedal spindle to the center of the bottom bracket spindle or axle. The larger bicycle component manufacturers typically offer cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biopace
Biopace is a tradename for a type of ovoid bicycle chain ring manufactured by Shimano from 1983 to 1993 The design was intended to help overcome the "dead zone" where the crank arms are vertical and riders have little mechanical advantage. Biopace chainrings have a reduced chainring diameter coinciding with the cranks being horizontal. This is supposed to smooth the pedaling action, allowing the rider's feet to carry more momentum through the power stroke, and having it smoothly removed at the bottom of the stroke rather than encouraging riders to push bigger gears and risk knee damage due to higher knee joint loadings. This is different from the design of other oval style chainrings, which have the smaller effective chainring diameter coincide with the cranks being at the top and bottom dead center (TDC and BDC), thus making the crank easier for the rider to turn through BDC for constant chain tension. By having the chainring at its peak effective diameter with the cranks lev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotor Cervelo Crankset Osymetric Chainrings
Rotor may refer to: Science and technology Engineering *Rotor (electric), the non-stationary part of an alternator or electric motor, operating with a stationary element so called the stator * Helicopter rotor, the rotary wing(s) of a rotorcraft such as a helicopter *ROTOR, a former radar project in the UK following the Second World War *Rotor (turbine), the rotor of a turbine powered by fluid pressure *Rotor (crank), a variable-angle bicycle crank *Rotor (brake), the disc of a disc brake, in U.S. terminology * Rotor (brake mechanism), a device that allows the handlebars and fork to revolve indefinitely without tangling the rear brake cable - see Detangler * Rotor (distributor), a component of the ignition system of an internal combustion engine *Pistonless rotary engine *Rotor (antenna) Computing *Rotor machine, the rotating wheels used in certain cipher machines, such as the German Enigma machine ** Rotor (Enigma machine), a rotating part of the German Enigma machine *Rotor ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bradley Wiggins
Sir Bradley Marc Wiggins, CBE (born 28 April 1980) is a British former professional road and track racing cyclist, who competed professionally between 2001 and 2016. He began his cycling career on the track, but later made the transition to road cycling. He won world titles in four disciplines (Madison, individual pursuit, team pursuit and road time trial), and Olympic gold in three (individual pursuit, team pursuit and road time trial). He is the only rider to have won both World and Olympic championships on both the track and the road as well as winning the Tour de France. He has worn the leader's jersey in each of the three Grand Tours of cycling and held the world record in team pursuit on multiple occasions. He won a gold medal at four successive Olympic Games from 2004 to 2016, and held the record as Great Britain's most decorated Olympian with 8 medals until Jason Kenny won his 9th in 2021. He is the only rider to win both the Tour de France and Olympic Gold in the same ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chris Froome
Christopher Clive Froome [kɹɪs fɹuːm], (born 20 May 1985) is a Kenyan/British Road bicycle racing, road racing cyclist who currently rides for UCI WorldTeam . He has won seven Grand Tour (cycling), Grand Tours: four editions of the Tour de France (in 2013 Tour de France, 2013, 2015 Tour de France, 2015, 2016 Tour de France, 2016 and 2017 Tour de France, 2017), one Giro d'Italia (2018 Giro d'Italia, 2018) and the Vuelta a España twice (2011 Vuelta a España, 2011Awarded in 2019 following the disqualification of original winner Juan José Cobo and 2017 Vuelta a España, 2017). He has also won several other stage races, and the Velo d'Or three times. Froome has also won two Olympic bronze medals in Individual time trial, road time trials, in Cycling at the 2012 Summer Olympics – Men's road time trial, 2012 and Cycling at the 2016 Summer Olympics – Men's road time trial, 2016, and took bronze in the 2017 UCI Road World Championships – Men's time trial, 2017 World Champion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tour De France
The Tour de France () is an annual men's multiple-stage bicycle race primarily held in France, while also occasionally passing through nearby countries. Like the other Grand Tours (the Giro d'Italia and the Vuelta a España), it consists of 21 stages, each a day long, over the course of 23 days, coinciding with the Bastille Day holiday. It is the oldest of the Grand Tours and generally considered the most prestigious. The race was first organized in 1903 to increase sales for the newspaper '' L'Auto'' and is currently run by the Amaury Sport Organisation. The race has been held annually since its first edition in 1903 except when it was stopped for the two World Wars. As the Tour gained prominence and popularity, the race was lengthened and its reach began to extend around the globe. Participation expanded from a primarily French field as more riders from all over the world began to participate in the race each year. The Tour is a UCI World Tour event, which means that th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Bradley Wiggins")
_(cropped).jpg "Click for more on -> Chris Froome")
