If you think Cancellara has got some skills when the road points down, have a gander at this video of professional downhill skateboarders Byron Essert and Alex Tongue ripping up an Alpine descent. Anyone recognise it?

With no brakes to slow them down the only way to scrub off speed is to get sideways and use the friction of the wheels to slow their descent. It's amazing stuff, and we reckon there was some prize expressions on the faces of the riders they passed on the way down. Byron and Alex were staying at a hotel on the climb itself, and the dash across the car park to get to the hotel – at what, 50mph? – is properly scary stuff.

Anyway, enjoy. If you can watch…