Wiggins is enjoying competing in this year's Tour de France
British cyclist Bradley Wiggins could be set to quit track cycling to concentrate on the Tour de France.
The 29-year-old may pass up the chance to add to his Olympic medal haul at London 2012, in favour of attempting to conquer cycling's biggest race.
The Garmin team member is lying third in the Tour and has previously vowed to become the first Briton to win it.
"The last two weeks has shown me what I want to do for the next four years of my life," he told Cycling Weekly.
The Londoner has three gold medals from three Olympic appearances, but the lure of the Tour may be enough to prevent him making a fourth appearance in his home town in three years' time.
"The Olympics are fantastic for the two weeks they're on every four years, but the Tour de France is where it's at," he added.
"It's fantastic to be a part of the race, and I want to see how far I can go."
Peter Keen, UK Sports performance director and a former performance director of British Cycling, believes there is enough talent coming through to cover the possible loss of Wiggins to the Olympic team.
Keen said: "If I had seen Bradley three weeks ago and he would have told me he would be in third place with a week to go I would not have been entirely convinced.
"The 2012 Olympics start less than two weeks after the Tour so there are real challenges there.
"But whatever Bradley does, we understand there are other cyclists who will be able to come through - the system is there."
Wiggins has enjoyed record breaking success during his career, becoming the first rider to successfully defend the Olympic 4km pursuit title in Beijing last year.
As well as two golds last summer, Wiggins also won three medals in Athens in 2004 but is now seriously considering a change of focus.
"I really don't know [about London 2012]," he said. "I can't see it now.
"I don't have to go back but it all depends on this week really. A lot has changed in the past two weeks for me.
"If I can finish in the top five, or top 10 or even top 15, it opens the door for the future.
"I've seen enough to come back next year and try again."
With the race entering its last week, however, and due to finish in Paris on 26 July, Wiggins has not given up on a podium finish in this year's race.
"I am going to give it everything this week and see what happens, because I don't want to reach the end of this Tour thinking 'what if'.
"If that means I have a bad day and slip down, then it won't be because I've not tried my hardest.
"If you set the bar high enough, maybe [you will] come close to it."