As I'm sure most of you already know, Isle of Man TT legend Guy Martin loves his mountain bike, and has even competed in several races over the years, but we just spotted this helmet cam footage of him riding his 'other' bike at this year's TT race, and to say it blew our mind is putting it mildly. It's like you're in a computer game or something, and all you can think is 'it must be sped up'. It isn't though, the guys racing this event are just mental, and clearly have the biggest balls in the world. Anyway, be prepared to shit yourself...

After riding like that even the fastest of DH runs must seem like they're happening at a snails pace. Truly bonkers.