Originally Posted by canklecat

If you drill down in the comments section, Lanterne Rouge confirms he got feedback from the rider or team and there was no previous crash with that bike. With a pro team it's unlikely to have been an issue with faulty adjustments or not using a torque wrench.

That pretty much leaves manufacturing defect. Another commenter claimed to have visited a famous marque's assembly plant that spot checked only one in 50 frames made by contractors elsewhere.

If I were with a pro team I'd expect every component to have been inspected before racing. That may not eliminate mishaps like this but it sure couldn't hurt.