Originally Posted by
Salamandrine
Note that the beach marks show that the crack had extended approximately 40% of the way across the crank shaft, and yet someone continued to ride it. It would have been easily visible, yet it was ignored. +1 Inspect cranks regularly with light and magnification.Not unusual for used campy record cranks from BITD to have really big miles on them.
The cranks in my photos were part of a University Engineering school's materials study to see failure modes in bicycle components - once identified, the parts were continually stressed until failure. Not my pics nor my university but very practical in scope.