In reply to Ron Walker:
I have an old pair of G12's, one side of the plastic toe bail broke in Canada (2000). I simply threaded 5mm cord through the hole in crampon frame, knotted it, tied the other end through the plasic ring, which you thread straps through. Apply a few wraps of duct tape to finish.
The tension between front posts and heel clip, keeps crampon onto boot sole, plastic toe piece non load bearing. I still wear them today (on certain routes).
Stuart