Here is the news taken from www.cyclingnews.com
"Bad luck for Ullrich
Jan Ullrich (T-Mobile)
Photo ©: Sirotti
The Clasica San Sebastian didn't go quite according to plan for Jan Ullrich (T-Mobile), who abandoned the race when his saddle broke at the top of the Jaizkibel with 35 km to go. At the time of the mishap, Ullrich was leading a small chase group behind the seven leading riders, but rolled to a halt when he noticed something was wrong. Although the Mavic neutral service car offered him a wheel, Ullrich required a new bike and had to wait four minutes for his team car to catch up. By that stage the race was over, and Ullrich climbed into the car.
"As it happened so close to the finish, there wasn't any point in picking up the chase again," said Ullrich. "Perhaps this will mean good luck next week in Athens."
Ullrich also suffered a puncture earlier in the race. His teammate Andreas Klöden abandoned with a violent headache, quite possibly as a result of the hot conditions. "
Whilst I am not 100% sure that he was using his AX-Lightness combo; It is very likely as he has been using them throughout 2004.
I am unable to find any quality pictures of him off his saddle, or of the seatpost so it is quite hard to verify that is was an AX product.
Do you think that it is likely that AX-Lightness break? Because I am considering ordering one.