Originally Posted by
JohnDThompson
George Hincapie famously had his carbon-fiber fork fail during the 2006 Paris-Roubaix.
And there's the "
Busted Carbon" blog documenting numerous other examples.
Apparently slightly less famously, it was the aluminum steerer tube of Hincapie's fork that broke, after a previous hard fall.
Equal amusement can be had by looking up "broken steel bike" and "broken titanium bike."