And that's all been before he really pushes his body to its limit to pedal about 700 kilometres from Canberra to Melbourne to benefit the Cancer Council ACT.

Mr Bottari, 28, is ploughing through an intense nine-month training regime before the non-stop ride he has planned for August 21.

Yet the Torrens fitness enthusiast said the soreness and exhaustion he would experience was nothing compared with what many people had to suffer during their lives.

His motivation for the extreme challenge was the death of his otherwise fit and healthy father, aged 60, to cancer two years ago.

Months later, his larger-than-life best mate Taylor, then 26, was killed in a car crash while travelling in Africa.

Cycling helped him cope with the enormity of his loss.

''The pain from the ride is very temporary,'' Mr Bottari said.

''Seeing my father battle cancer, and go through chemotherapy and the like was definitely tougher than me going for a short ride.

''In comparison, it's not that hard.''

Mr Bottari has set aside 36 hours to get from Canberra to the beachside Victorian suburb of St Kilda, but hopes to cross the finish line inside of 30 hours.

Family and friends have so far donated about $3500 towards his fund-raising goal of $10,000.

To prepare for the challenge, Mr Bottari has cycled the 23 kilometres to his Mitchell office four times a week, swum twice a week, gone for a run three times a week, and done three weight sessions a week.

Finally, he would take a ''slow and steady'' endurance bike ride of up to nine hours on Saturdays, during which he could travel up to 200 kilometres on his mountain bike.

The strain has already taken a physical toll.

He's battled a knee injury and experienced numbness in both hands due to nerve compression. He's also had blisters on his bottom.

At one stage he lost about half a kilogram each week.

To stave off the weight loss Mr Bottari, a water quality officer, has had to eat sandwiches and fruit constantly throughout the day, even during work meetings.

Having completed several 24-hour marathon races, as well as a ride from Canberra to Sydney, Mr Bottari expected he would go ''into the zone'' to cope with the pain and fatigue that came with such a long race.

''You only see a circle, it's like a tunnel and you can't see much either side.

''You just keep riding towards the light.''

The memory of his father and closest friend, as well as the work of Cancer Council ACT, would inspire him to keep going when things got tough, Mr Bottari said.

''Cancer doesn't discriminate, it can affect anyone no matter how healthy you are.

''Imagine if you could go into the doctor's and they say 'you've got cancer, no worries, that's just a two-week course of antibiotics'.''

You can donate to Mr Bottari's charity ride at give.everydayhero.com/au/canberra-to-melbourne-ride-for-the-cancer-council.