Hello,
I have a Raleigh Team Pro frameset with a Campy #660 control boss that needs minor repair. Apparently, the previous owner managed to strip the threads on the right side control boss by inserting misalligned the #604/1 adjusting wing nut. The result is that the downtube shifter wing nut will screw in, but not tighten properly & causes unwanted gear changes.
Do you have any suggestions on how I repair/redo the control boss threads without having to repalce the complete control boss? I can purchase a metric tap set, but the original threads are probably too loose. I do not want to have to glue the adjusting wing nut into the control boss. Also, I prefer not to use handlebar fingertip shifters.
Any suggestions?
Thanks, Steve Neago
Cincinnati, OH