'I edged forward, scoping out the summit for loose rock.
The ridge was only three feet wide but I felt pretty stable. I checked my balance and peered at the sheer drop below.
I could feel the confidence surging through me. I was in control. Besides, I knew that I could always bin my wheels off the cliff face if the worst came to the worst...' Danny MacAskill lives on the edge.
The cyclist is legendary for his YouTube viral videos like The Ridge, Cascadia and Imaginate: nerve-racking montages of skills which scale everything from mountain peaks, rooftops, ghost towns and movie sets.
His life is one of thrills, bloody spills and millions of online hits. It hasn't been an easy ride. Doubt, stress and the 'what if?' factor circle every trailblazing trick, which require imagination, fearlessness, groundbreaking techniques and an eye for a good camera angle.