But that's exactly what former Port Macquarie cyclist Lachlan Morton achieved last week to set a new Everesting world record, slicing 10 minutes off the previous mark.

In doing so, Morton ascended the Wall of Rist Canyon in Colorado 47 times to accumulate the necessary metres of elevation gain needed to climb the equivalent of Mount Everest, the highest mountain in the world.

Just to be sure, once he'd completed his 47th ascent, Morton went back down and added a 48th lap, taking his total elevation gain to 9113 metres.

If that's not impressive enough, it came barely a week after his first attempt was classified as unsuccessful after officials deemed he only achieved 42 laps.

Cycling NSW chief executive Graham Seers founded the Port Macquarie Cycle Club in 1988 and remembered handing Morton his first bicycle helmet.

"The club has produced a lot of good bike riders and a lot of good people and the Morton family are some of those," he said.

"We started the Great Hastings Bicycle Ride from Settlement City to Settlement Point and they came to participate, but left their helmets at home.

"I had to go and get them some, then we became friends from that and the kids were originally into motorbikes, but they went into cycling after that."

Morton already has an impressive cycling history that includes winning UCI professional tours, the Tour of Utah and a top three finish in the Tour of Colorado.

Over the last few years he's added another string to his bow in the form of ultra-endurance rides.

It comes after Morton retired from the sport about seven years ago before a ride from Port Macquarie to Uluru with older brother Angus reignited his passion for the sport.

"That re-energised his whole passion for cycling where he realised he could have fun and ride a bike and be a professional if he wanted to be," Seers said.

"He's weathered some setbacks and bounced back to achieve what he's done; it's quite an amazing feat."

Port Macquarie Cycle Club vice-president Joan Hawes' son Kevin was friends with Morton when they grew up in Port Macquarie as kids.

"It doesn't surprise me at all what Lachy did because he'll do whatever it takes," she said.

"He doesn't give up and there's no racing going on so it's good to see him going and doing extra things to keep the sport going."

Instead of being deflated about his failed first attempt, the 28-year-old simply got back on his bike and tried again.

"That's how fit and how driven he is," Hawes said.

"When they do those big tour rides it's days and days of racing; he's been doing it since he was a young fellow so it's in their system to get up and train every day."

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