In a phenomenal ride over seven laps of the Silverdome, the 24-year-old clocked 2:01.13 at an average speed of 59km/h, getting cheered over the line by second- placed fellow South Australian scratchman Alex Edmondson with Victorian Tyler Spurrell third.

To make the 2000-metre achievement even more impressive, it was just Bobridge's second track ride since claiming a silver medal in the team pursuit at the London Olympics.

"I normally can only do a time like that on a pursuit bike," Bobridge said after collecting the $3000 winner's cheque.

"It's a lot quicker than an individual pursuit over the same distance.

"It's not as fast as a team pursuit but it's not hanging around; it's pretty quick and a great feeling to do that time."

Bobridge, who was helped by three other scratchmen, including former Launceston Wheel winner and South Australian teammate Glenn O'Shea, said he was delighted to return to the Christmas carnivals five years after his last attempt as an under19.

"It's a massive honour just to come down, let alone win this race," he said.

"Last week at the Australian madison titles was my first time back on the boards since London so the form is slowly coming back and it was great to pick up a win and even better that it was the quickest ever time for a wheel race."

Bobridge, who won the Australian road championship and the world championship individual and teams pursuits in 2011, equalled the winning time of Brett Aitken in 1996.