A degree of insanity is a prerequisite for getting onto a high-performance motorbike and tackling the Isle of Man TT at speeds of up to 130mph, so perhaps we shouldn't be surprised at this chap's antics.
For this intrepid rider decided to up the ante somewhat, and take on the island's deserted roads completely naked during this year's TT.
Amazingly he shows no fear, reaching speeds well over 100mph on several occasions during the early morning run, leaving his fellow rider trailing in his path. It's reassuring to see that he still wears a helmet for his ride, although we wager he won't have been trying to get his knee down on any occasions.
Insane TT rider, we admire your bravery. Check out the video of the run below.