These guys take a child's three-wheeled toy to extreme high speed levels in this action-packed downhill adventure.
From the team that brought us the Human Slingshot last month, we now have their latest offering, which combines a trike, a mountain and three fearless riders.
The trio take their custom trikes down Powder Mountain, in Utah, reaching speeds of over 55mph.
Need I point out, that none of the them have braking facilities and merely use their feet as brakes. The expression 'a sandwich short of a picnic' springs to mind with this one.
Check out the most extreme trikers in action below.