This may be a dumb question, but...
One of the barrel adjuster on the derailleur cable broke. It's a Co-Motion where the the cablestops are brazed on the sides of the headtube. I'd like to replace it with the same one. Does anyone know the brand? They have no markings. I have added a picture of the barrel
If that doesn't work, can I use any barrel adjuster? Do they all have the same thread?
Thanks for your help