The 36-year-old admitted he had placed his life at risk by performing the daredevil stunt.

‘This was a very dangerous stunt because there were so many factors to consider,’ he said.

‘The roller caster is wooden and so unlike rides made from iron and steel there was always a chance of the odd nail or screw that would not be entirely flat.

‘If the skates were to catch a stray nail then I could have fallen and I would almost certainly have died.’ Spending two months planning the outrageous stunt, Mr Auer also designed and made the monster skates, which took him a total of 110 hours’ work.

But he said there was no room for error and he used 16 rolls on each shoe.

‘When I reached the first drop I was 30 metres high and this allowed me to reach speeds of 90kmh on descent.,’ he said of Saturday’s stunt. Full Story plus more pics