Sir Bradley Wiggins rode brilliantly to dethrone German rival Tony Martin and win the gold medal in the Road World Championships individual time trial in Ponferrada, northern Spain.
Wiggins' exertions saw him collapse after he finished. When he recovered, the British rider dedicated the win to his family.
Sir Bradley Wiggins has just set off on his attempt to win the Road World Championships individual time trial in northern Spain.
Defending champion Tony Martin of Germany - Wiggins' only serious rival for gold - is the last man out of the gate, two minutes behind the British rider.
Sir Bradley Wiggins, who is going for gold in the world championships time trial in Spain later today, has revealed he will attempt to break the world hour record in 2015.
"I want to prepare for it properly," Wiggins told the BBC. "It will give me something to get out of bed for in the winter."
Wiggins said he was inspired by Jens Voigt, the 43-year-old German who broke the record last week.
Sir Bradley Wiggins says he must ride a flawless time trial if he is to beat German rival Tony Martin to world championships gold in northern Spain.
"This year's course is a lot different to last year's, which was long and flat," Wiggins said.
"You have to think more on this course. There's no room for error.
"You need to have enough in the tank for the end. It's challenging, a true test of the time trial."
Wiggins goes for gold at 2.34pm (BST), two minutes ahead of final rider Martin. Essex-born rider Alex Dowsett, tipped for a top-ten finish, sets off at 2.18pm.
Britain's most decorated cyclist Sir Bradley Wiggins has officially received his knighthood from the Queen in a ceremony at Buckingham Palace.
Wiggins told ITV News he couldn't remember what the Queen said to him, as he was so nervous.
Former Tour de France winner Sir Bradley Wiggins is among the race favourites along with Nairo Quintana, second behind Britain's Chris Froome in this year's Tour.
This year's race starts on the Scottish Borders and will move through the Lake District, Snowdonia and Dartmoor before concluding with a showpiece finish in central London.
Team Sky, who Sir Bradley Wiggins cycles for, has announced that the Olympic champion has "been withdrawn" from the Giro d'Italia due to a chest infection.
The team's principal Sir Dave Brailsford said: “We monitored Bradley overnight and this morning we’ve withdrawn him from the Giro after consulting the team doctor. His chest infection has been getting worse and our primary concern is always the health of our riders.
“Bradley will return to the UK today for treatment and to rest and we hope to have him back on the road as soon as possible. As a passionate racer he wanted to continue but he is simply unable to do so on medical grounds.”
A van driver who knocked Tour de France winner Sir Bradley Wiggins off his bike has accepted the offer of a driver awareness course.
The 32-year-old athlete spent a night in hospital following the accident near his home in Eccleston, Lancashire, last November, while he was on a training run.
The four-time Olympic champion was treated for a bruised hand and ribs.
After a formal interview, the van driver, Cath Burrows, 44, was summonsed by Lancashire Police over driving without due care and attention.
It has emerged she has agreed to complete a driver awareness course.
A police spokeswoman said it considered the matter had been dealt with.