Adventurer Mark Beaumont to cycle 875 miles in 24 hours for STV Appeal And all without leaving Glasgow, no less. On Saturday, Mark will set out to pedal 875 miles non-stop on a stationary bike at intu Braehead over 24 hours to help raise £10,000 for the STV Appeal. But he needs your help to compete the tough challenge. He's circumnavigated the globe in less than 200 days and last year ran and cycled along the Highland Boundary Fault Line from the Isle of Arran to Stonehaven in 10 days. Yet the extreme cyclist and adventurer admits this weekend's challenge could be his toughest yet. "Yesterday I rode my bike for four hours, and on Saturday I will be riding for 24 hours... that is an intimidating thought," the 31 year old said. This is coming from The Man Who Cycled the World in 2008 - 18,000 miles through 20 countries in a record-breaking 194 days and 17 hours. "It's going to be pretty brutal," he added. Despite everything I've done, it's certainly the furthest I'll have ever cycled in that time period. To help him complete the challenge, Mark will be joined on three other Watt Bikes by St Mirren footballers, the Glasgow Fire Department and other budding cyclists. "The idea is that we add up the distance everyone cycles," Mark said. People can join me from 30 minutes to two hours at a time as we try to cover the distance from Land's End to John O' Groats. It's doable but we'll need people to be on the bikes for the whole time. It's going to be really tough because I'm going all day and all night. I'll need lots of encouragement from people, especially through the graveyard shift. Adventuring since an early age, Mark was first inspired to go on an expedition at the age of 12 after reading in a local newspaper about a cycle from John O'Groats to Land's End. Also joining Mark will be Patrick Kiehlmann, 11, who raised thousands for Yorkhill Children's Charity by cycling from Land's End to John O'Groat's with his dad Mark. The youngster, from Bishopbriggs in East Dunbartonshire, developed complications while battling appendicitis in 2012. However, with the help of Yorkhill hospital he made a full recovery and now he is raising money for the hospital. As well as a love of cycling, it turns out that a desire to raise money for Yorkhill Children's Charity - one of the STV Appeal's beneficiaries - is something both Mark and Patrick have in common. Mark said: "I love the fact the money stays in Scotland. I myself was helped by Yorkhill Children's hospital when I was three years old and recently went back to hand over a cheque as part of the fundraising we did last year. "I also got the chance to visit a few other charities the STV Appeal supports in Glasgow," Mark added. Some of these places can struggle to fundraise themselves, so it's so important to help children in Scotland who are in different situations of poverty and I'm passionate to keep on doing what I can to help. If you're not a keen cyclist, there's still plenty of ways you can help Mark out with his challenge. As well as sponsoring him online, people can head down to the Infiniti Braehead car show room to cheer him on. There will also be entertainment from local singer Daniel Docherty, who you may have seen on the Riverside Show or busking on Buchanan Street from 8pm to 11pm. Those who head along to support Mark, will get a free coaching session from the cycling legend. "I can give them some hints and tips as we cycle," said Mark. We just need some enthusiastic people to turn up to help pedal those bikes and I'll try to help as much as I can. If you'd like to join the 30 riders already signed up for the challenge, you can book a place by calling the Infiniti Braehead Centre on 01418868190.