"But I thought this was God's own country, so today we ride into beauty," he said.

Yesterday morning Prime Minister Tony Abbott saw off the lycra brigade of politicians and national figureheads at Burnie's West Beach.

The Pollie Pedal is designed to take politicians out of their comfort zone, and since its inception 18 years ago, more than 20,000 kilometres have been cycled and about $4 million raised for various charities.

Among the crew of about 50 was Tasmanian cycling champion Macey Stewart.

Mr Abbott wasn't able to participate in the start of the event as he flew out to attend former prime minister Malcolm Fraser's funeral in Melbourne.

"I'm sorry that I am rather overdressed for the occasion, but I'm looking forward to being more appropriately attired on the right form of transport when I see you mid-morning tomorrow [Saturday]," he said.

"This year's Pollie Pedal is raising money for Carers Australia.

"There's almost three million carers; they're the unsung heroes of our society.

"We're hoping to raise about half a million dollars for Carers Australia this year and that money will help the carers of Australia to be better represented.

"It will help to ensure that the carers of Australia are in contact with each other, more able to access services, and I'm really proud once again to be associated with this splendid cause."

The first leg of their four-day ride saw the cyclists head from Burnie to Deloraine.

Over the next four days, riders will cover about 600 kilometres and finish in Launceston on Monday.