The Scottish Government want to make 2013 all about cycling.
The Tweed Valley boasts 250 miles of Europe's best biking trails.Father and son Francis and Finn Watkins visited Glentress.
"We come here regularly, it's a great way to spend time with my family and get fresh air. There are great facilities here and at Innerleithen. What better way to get fit?"
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The historic event always takes place on the last Friday in July.
Early enquiries suggest the men may have taken the drug Blue Valium. Two of them remain in hospital with breathing problems.
More than 8,000 people are expected to attend over the three day event, which starts at 7pm tonight.