Today I repaired the stripped threaded hole that is supposed to take the bottom bolt that holds on the rear plastic mudguard thingy.
I removed the thingy to aid removal of the rear wheel. When I took out the bottom bolt it would not separate from the guard as the thread seem to look like had come out with the thread from the FD housing. Upon closer inspection it was the remains of a Helicoil.
As I have owned the bike from new, 2017, 30,000mls, and thought I knew all of it's history, I am annoyed that someone has stripped a thread then made a poor job off fixing it and kept quiet about it, Helicoils should not come, someone had over tightened the bolt into the Helicoil and stripped that out!
It can only be the servicing dealer or the tyre fitter (ride in/out) and when it was done?, who knows.
I was left with an over sized hole in the FD housing.
My fix was to take a 12mm bolt, drill down it's length and tap it out to 6mm, cut off an appropriate length to make a reducing insert. Then I drilled out the old bolt hole in the FD and tapped it out to 12mm and put in the insert with threadlock. All seems to be holding together nicely.