Originally Posted by
phoebeisis
What are those tools?? Thread files?? Wow-didn't know there were such things-
Are they UNIVERSAL- one file fits all?? Or my guess you need a specific file for a specific threading?? Looks like maybe you get two "threads" per file? Hmmmm- never knew there was such a thing??
Yes, threads files. You get eight different pitches on each one; they come in both metric and SAE.
DBG? How did you use ball bearings to squeeze up some threads?? Somehow pushed them thru the grooves-into the metal-squeezed up some metal?? I'm mis-reading what you wrote I think? MAYBE you mean your repair required bigger bearings once it was done? How did you do that??-Maybe captured them in pliers-squeezed-turned the pipe with some help?? How?? I could picture pushing ball bearing thru a grove-but I don't think you mean that??
If you ride your bike with the headset loose, the upper cup will rock on the threads, eventually wearing them away in a ring where the threaded cup sits and resulting in a headset that won't stay in adjustment. By using larger-than-spec balls, dbg was able to move the place where the threaded cup engages with the steer tube to a point above where the threads were damaged, thus allowing the threaded cup to stay securely adjusted. A clever solution.