I suppose it's possible, but they were retorqued just a few days ago with a torque wrench to 95 inch/pounds Shimano specs for a steel bolt).
As to superhuman, nope, not at all.
Maybe one was flawed and when it went, they cascade failed?
Originally Posted by
gearhead82
It's hard to imagine that human force could shear those bolts unless they were perhaps a tad bit loose to begin with. Maybe they backed themselves out a little? Or I suppose you could just be superhuman!