Originally Posted by
bikebikebike
Wow
2) I never got an answer as to how they were failing, despite numerous inquiries. ? rotation, hinge ,casting clamps?
It has value in the prefight checklist, something always alluded to, but seldom reinforced and pursued.
talking to the local dahon dealer, some recall stem were “over machined” on the clamping under cut (full inner turned diameter) leave little material and causing cracking.
the redesign involved a “half moon” milled undercut leaving extra material where required which reduces significantly the risk of cracking