Geraint Thomas has signed a new three-year deal which will keep him at Team Sky through until the end of 2014.
The Welshman has been one of the big success stories of the Tour de France, wearing the young rider's white jersey for most of the opening week after finishing sixth on the opening stage.
He also produced a brilliant performance to lead out teammate Edvald Boasson Hagen for his victory on stage six and then won the combativity award for heading a breakaway for most of the 12th stage when the race hit the high mountains in the Pyrenees.
Thomas also illustrated his versatility at the Spring Classics and won his first overall title in a week-long road race at Bayern-Rundfahrt at the end of May.
He said of his new contract: "It's great news to be able to commit my future to Team Sky.
"The team have shown their potential over the last 18 months and I am delighted to have been a part of that success. The management have shown real faith in me as a rider and I feel like I'm improving all the time.
"The future is really exciting for Team Sky and British Cycling and I'm thrilled I will be able to play a part in it."
Team Princical Dave Brailsford said: "We are delighted that Geraint has re-signed for another three years with Team Sky.
"We have been determined from the start to build and develop a team around the very best homegrown talent like Geraint.
"The last two weeks at the Tour de France have underlined again his world class abilities and we look forward to seeing even more from him over the next three years."