Sir Dave Brailsford has left his role as British Cycling performance director, Press Association Sport understands.
Brailsford has led Britain's cyclists to an unprecedented period of success, with eight gold medals at the Beijing and London Olympics and has arguably been more influential than any other person in turning cycling into a mainstream sport in this country.
The 50-year-old Welshman also established Team Sky, winning the Tour de France through Sir Bradley Wiggins in 2012 and Chris Froome in 2013.
Now Brailsford has decided to concentrate on his role as Team Sky principal, leaving British Cycling looking for a new figurehead in the lead up to the Rio de Janeiro Olympics in two years' time.
A man who was caught cycling on the M25 in Surrey, after an app on his phone sent him there by mistake, has been fined.
Surrey Police tweeted that the man had been looking for a shorter route to cycle home from work during rush hour. He was fined £50 by the force.
Cyclist stopped and after a long conversation he has been safely removed with his copy of his ticket for £50.
@chris_caulfield a male was looking for a shorter route to cycle home from work. Phone app sent him on motorway so thought it ok. £50 fine
The NHS could save at least £250 million every year if 10% of the trips in England and Wales were made by bike, researchers at Cambridge University found.
Research commissioned by British Cycling found there would be an almost 5% reduction in the number of sedentary lifestyle related illnesses, like heart disease, diabetes and stroke.
Dr James Woodcock, a senior researcher at Cambridge University's centre for diet and activity research, said: "Cycling is a great way for people to embed physical activity in their everyday lives.
"If we can get people to stay active throughout their lives then it can make a huge difference to their health."
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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.
Sir Bradley Wiggins will receive his Knighthood for services to cycling today at an investiture ceremony at Buckingham Palace.
Speaking after being named in the New Year's Honours List, the cyclist said: "It's quite something really.
"I never imagined that I would ever become a knight so it's an incredible honour, but there's a slight element of disbelief, and it will take a while to sink in.
"There was never any doubt whether I'd accept it or not, it was more a case that I never saw myself as a Sir, and I probably never will.
"I don't like profiting from status so it's more for my family. It's nice for my parents and grandparents to be able to say I'm a knight, and for my kids in the future."
Sir Bradley Wiggins is to be formally awarded a Knighthood today at an investiture ceremony at Buckingham Palace.
It was announced in the New Year Honours list that Britain's most decorated cyclist was to receive the honour for services to cycling following his Tour de France win and gold at London 2012.
A teenager left in a coma after he was knocked off his bike near Skegness has spoken his first words some four months after the accident.
Ryan Smith was not wearing a cycle helmet when he was clipped by a van because he did not want to mess up his hair.
His family say his story should act as a warning to others.
Sejal Karia reports:
A Metropolitan Police bike safety initiative launched in the wake of a spike in the number of cyclist deaths in London will be "intensive and far-reaching"
Every road death is a needless tragedy that wreaks devastation on the victim's friends and family. Every serious injury is life-changing and distressing.
This operation will be intensive and far-reaching. Our aim is to reduce the appalling number of people who die or are injured on London's roads each year.
Traffic and Safer Transport officers will be out in force, and even officers who don't specialise in traffic policing will be watching and dealing accordingly with anyone they see breaking the law.