Five-time Olympic gold medallist says he has "too much other stuff to do".
Five-time Olympic cycling champion Bradley Wiggins has shelved his bid to compete in rowing at Tokyo 2020.
Speaking on his eponymous Eurosport show, the 38-year-old said, "I'm still training every day, most days, with it. But I've decided that I'm not going for the Olympics because I've got too much other stuff to do."
"I need to give myself a break. I just haven't got the time to train three times a day." - Bradley Wiggins
The 2012 Tour de France winner retired from cycling four months after winning his fifth Olympic gold medal at Rio 2016.
Britain's most decorated Olympian, with eight medals, took up rowing to keep fit but then started working under double Olympic rowing champion James Cracknell with a view to competing at another Olympic Games.
Despite fracturing his leg taking part in a British sports reality TV programme in January 2017, he made good progress and announced his intention to race in December's British Indoor Championships.
He put on more than 20kg in weight to bulk up for his sport switch, but could only finish 21st in the London Velodrome after mistakenly thinking there was a false start.
Wiggins is a busy man. As well as his TV show and other media work, he has his WIGGINS cycling team which competed at this month's Tour of Britain.
Junior world time trial champion Tom Pidcock is in his line-up with the 19-year-old already earmarked for big things in the future.
In 2017, the Englishman also won the junior cyclocross world title and the junior Paris-Roubaix.
Campbell Stewart, a two-time track medallist at this year's Commonwealth Games, is also in Team Wiggins.
The New Zealander could be a medal contender in the velodrome at Tokyo 2020 before making a switch to the road.
Wiggins says he is keen to start a women's team to run alongside the men's one and insists he does not want "to go anywhere near the Tour de France", preferring to focus on putting youngsters on the path to success.