Yesterday I narrowly avoided a very expensive outcome to some bike maintenance.
My #Shimano Dura Ace FD-R9100 front derailleur needed adjustment. I noticed the adjustment barrel (ringed in green) was sticking so removed it to clean. Once removed, a 2 mm piece of plastic (ringed in yellow) fell out. This acts like a nylon nut, adding friction to the cable adjustment screw on the input link.
Getting the plastic piece back in so that it held the cable adjustment screw took 45 minutes using tweezers. The piece is tucked inside the derailleur in a hard to access spot and is only held in place by the cable adjustment screw. It fell out more times than I can recall! 🤬
Installing that tiny piece of plastic took massively disproportionate effort. And a lot of words to explain in this post! 🙂
#Cycling #BikeTooter #BikeMechanic