So....going back to the original topic, was it ever clearly determined what exactly caused the frames to fail on these bikes ?
The general consensus seems to be, the hinge becoming loose results in the frame sections moving in opposite directions which creates more stress on the welds that in turn fail.
It appears a newer design of frame hinge with a single shaft, the OCL 2.0 is now in use which should prevent the same thing happening again....or am I missing something ?