Wiggins, who won gold in the equivalent event at the 2012 Olympics having also won the Tour de France that year, clocked 56 minutes 25.52 seconds for the 47.1-kilometre route in Ponferrada to win by an emphatic margin of 26.23secs.
Great Britain's Sir Bradley Wiggins - elite men's world time trial champion! pic.twitter.com/G4KrYXdXMH
— British Cycling (@BritishCycling) September 24, 2014
The win meant it was Britain’s first gold in the event in 20 years, when Chris Boardman won the inaugural edition of the road time trial.
“I paced it perfectly,” Wiggins told the UCI afterwards.
“I still had gas in the final. Even on the last descent, I knew I was ahead, but I was pushing all the way.
“I don’t know what to say. I knew coming into it that I had the legs.
“Once I saw the course I knew if I was ever going to beat Tony it would be here.”
Wiggins went on to win his fifth Olympic gold medal at Rio 2016 on the track in the team pursuit before retiring from cycling in 2016.