Shimano M8130 11 speed linkglide groupset.
3 days into a 3 month tour of new Zealand this happens whilst pulling away. Derailleur is still under warranty, and has less than 1000 miles on it.
In 25 years, I've never done this befoe. From research, this isn't uncommon with modern shimano stuff.
Upon closer inspection it appears shimano use (glass fibre reinforced) plastic on the knuckle where the clutch is.
So much for linkglide durability, it's not even on an ebike. What is going on with shimano?!
Of course it happened on a Saturday late afternoon as the shops were closing until Monday. Converted to singlespeed to get 25km to camp.
by realismcalf