British star Bradley Wiggins took overall victory in the six-day Tour of Romandie on Sunday, after winning the race-ending individual time-trial stage.

Wiggins's Sky teammates Richie Porte and Michael Rogers finished fourth and fifth overall, after the Australian pair were third and seventh fastest respectively in the time trial.

Wiggins overcame early mechanical trouble to finish in 28 minutes, 56 seconds for the 16.5-kilometre circuit around the ski resort of Crans-Montana and was one second faster than American Andrew Talansky who climbed to second overall trailing Wiggins by 12 seconds.

Australia's defending Tour of Romandie and Tour de France champion Cadel Evans finished 29th overall after he was the 40th fastest in the time trial, finishing 1min, 45sec behind Wiggins.

"Tour de Romandie done for another year. Wiggins obviously the man of the week. No results for us but a good week of work," Evans said on his Twitter account.

Three-time Olympic gold medallist Wiggins added the Romandie title to his victory in the Paris-Nice stage race last month, confirming his status as a strong candidate to win the Tour de France in July.

"I think it's payment for the hard work I've put in," Wiggins told Swiss broadcaster RTS. "I've really grafted this winter and hopefully there's more to come."

Rui Costa of Portugal finished third overall, 36 seconds behind Wiggins, after placing fourth Sunday.

Overnight leader Luis Leon Sanchez of Spain held a nine-second advantage on Wiggins after two straight stage wins, but faded against the clock to finish 10th overall.

The Sky team leader Wiggins's expected push for the yellow jersey was jeopardised when he lost around 15 seconds after his chain worked loose six minutes into a challenging ride.

"It was a true test of a GC (general classification) rider. It had a bit of everything," said Wiggins, whose gear problems on a previous time trial in Switzerland cost him a medal at the 2009 world championships.

"I'm pleased with how I handled it," he said. "A few years ago, I might have chucked my toys out of the pram and thrown my bike down a ravine."

AP