Originally Posted by
Mike Mills
Dawes-Man, in your original post you said they broke during low speed. Low speed does not mean low stress. The link's break occurred at low speed but high torque because he was trying to accelerate when it broke.
The cumulative fatigue from "10 million" low stress cycles can be completely overwhelmed if you give it a few high stress cycles (such as when you are trying to accelerate). Add in a few manufacturing defects and use a brittle material and you get a cracked spindle.
Thing was, I wasn't accelerating or pedaling hard when they broke. I had pedaled hard on them on several occasions before.
Originally Posted by
Mike Mills
Is Chombi pulling our collective legs, or is that a real story?
Definitely the former as the guy's name in French would be Bātard and it doesn't have the connotation that it has in English.
Originally Posted by
Mike Mills
This thread is making me want to disassemble and inspect my old pedals.
Me too! And I think it has to be a good thing. All these years I've pretty much taken pedals for granted...