http://sports.yahoo.com/sc/news?slug=ap-giro

"The 26-year-old crashed on the twisting descent of the Bocco mountain pass around 25km from the finish line on Monday's third stage which ended in Rapallo.
While travelling at speed his left pedal briefly touched a wall at the side of the road, propelling the Leopard-Trek rider 20 metres to the ground below where he landed heavily on his face."


It happens to amateurs too. We've had two similar cases here with weekend riders, in the last three summers. Check your equipment and be careful. ish.