It's about 4500 kilometres from Horsham to Cairns, taking the scenic coastal route - a long way to feel every bump and jolt riding a classic Honda postie bike.
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Horsham's Tyler McRae and Ballarat's Tyler Dittloff, a pair of Powercor employees, decided they were up to the challenge, and set off this week on a massive journey to raise money for charity.
Speaking to Australian Community Media from the Kiama Blowhole on the NSW South Coast, Mr Dittloff said the ride had actually been pretty smooth so far.
"We've plotted out the route, we've got another 12 or 13 nights to go - fingers crossed, so far so good, we've still got another 3500kms to go," he said.
"During the middle of COVID, the more serious lockdown, I read a book called 'Going Postal', about an English guy who rode a postie bike from Sydney to London - a couple of chapters in, I booked in and got my licence, by the end of the book I'd bought a postie bike.
"I was telling Tyler about it, said we should do a trip, and he bought a bike the next day."
The bikes - top speed, about 80km/h - are still pretty much stock, with a fresh coat of paint on Mr Dittloff's and plenty of spare parts and a jerry can to keep them going.
They've already had a few adventures on the way since setting off on Saturday, including a missing axle nut.
"We had the ferry booked at Sorrento, we got their about half an hour early, and my axle fell out, that's a bit of a major problem," Mr Dittloff said.
"Luckily one of the guys who came with us for the first week, Chris, he saw a nut come off about 10km before, he thought it was a rock - one of the ladies from the ferry, no questions asked, she came out and said jump in the car to look for it.
"She drove us about 10km back, we jumped out and found it, then she put us on the next ferry, and one of the engineers on the ferry gave us a hand to put the axle back in and fix the bike."
The ride is to support the Shorter Brothers Foundation - one of their Powercor colleagues, Leigh Shorter, has three children all affected by Duchenne Muscular Dystrophy.
According to a Powercor media release, Leigh's brother Dale was also an employee before he tragically passed away from bowel cancer in 2007 at 25 years old. Powercor's annual award for most outstanding apprentice lineworker has since become known as the Dale Shorter Memorial Award.
"People can donate what they can, but we've suggested one cent per kilometre, which would be a $45 donation - we've already raised more than $2000, it's all going to a good cause."
Follow the trip's progress at their Facebook page, Post up the Coast, and donate to Shorter Brothers Foundation online.