Four of the events, the marathon, the walk, cycling road race and the cycling time trial, are free.
But Wednesday, the U.K.'s Bradley Wiggins scored a gold medal in the cycling time trial, just hours after rowers Helen Glover and Heather Stanning won Britain's first gold of the Games.
The cycling commissioner himself, Andrew Gilligan, has written and blogged about cycling for some time.
His nickname sprung from his time cycling the seven-mile journey to Westminster, followed by his family's appearance on a British Rail poster promoting the transport of bikes by train.
Many users have their favourite items, including the time, cycling continuously, which allows surreptitious scanning of the latest sports results while sitting in a meeting.
It was long thought that doping was rife in professional cycling (five-time Tour winner Eddy Merckx once said that the Tour was not won on sandwiches and mineral water), but the eventual admission of France's top rider Richard Virenque and team masseur Willy Voet confirmed it.
The cycling events continue Wednesday with time trial events for men and women.
Mr Godwin went on to win more than 200 time trials and was cycling an average of 200 miles a day when he set the world record.
Simpson was a childhood idol for Wiggins and it would appear fitting if he could ride into Paris in three weeks' time in yellow and make cycling history.
Last summer, as Team GB basked in its Olympics success and with cycling in Wales at an all-time high, calls were made by Sustrans Cymru to ensure people kept using their bikes.
She said having a cycling network would make cycling a "desirable choice, " with this a key time to get more people on a bike before the "Olympic buzz dwindles".
The "Colne Cyclone" has twice been part of a world-record breaking team this year - in the team pursuit final at the Track Cycling World Championships in Melbourne and on Thursday, as part of the Great Britain Olympic team, setting a new world-record time during the men's team pursuit track cycling qualifier.
By the time of Mr. Armstrong's first retirement from cycling in 2005, antidoping experts had come to a new consensus.
The council is marking the beginning of the construction by burying a time capsule, which will contain a Paralympic Team GB cycling jersey.
Now based in Colorado, O'Donnell has taken time out of her medical career to compete on the Pro-cycling circuit.
People who follow pro cycling reached their own conclusions on this and pretty much gave up a long time ago.
When Danish cyclist Knud Enemark Jensen died at the 1960 Olympics in Rome, his autopsy revealed traces of amphetamine, and the following outcry led to drug testing being adopted by the world cycling and football federations -- as well as the International Olympic Committee in time for Mexico '68.
CNN: Q & A: Catching dope cheats at the London 2012 Olympics
Jennings has only been doing cycling specific training for two weeks after a heavy rowing season but she dominated the time trial at Ballyboughal with Siobhan Jacobs a minute and three seconds back after the 20km.
BBC: SPORT | Other Sport | Cycling | McCann guarantees world place
And the views cycling in London are so vivid that it is like seeing in colour for the first time.
He points out that Eddy Merckx, Belgium's five-time Tour de France winner, said no other country did youth development in cycling like Colombia.
In October, Armstrong resigned as chairman of the charity he founded "to spare the foundation any negative effects as a result of controversy surrounding my cycling career, " according to a statement posted to the group's website at the time.
For three years, as the mold was eradicated from their house, Mr. and Ms. Guinness split their time between the U.S. and the U.K., staying with friends while cycling through three remediation companies before finding one they were satisfied with.
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