Mark Chick<p>Yesterday I narrowly avoided a very expensive outcome to some bike maintenance.</p><p>My <a href="https://social.vivaldi.net/tags/Shimano" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Shimano</span></a> 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.</p><p>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! 🤬</p><p>Installing that tiny piece of plastic took massively disproportionate effort. And a lot of words to explain in this post! 🙂</p><p><a href="https://social.vivaldi.net/tags/Cycling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Cycling</span></a> <a href="https://social.vivaldi.net/tags/BikeTooter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BikeTooter</span></a> <a href="https://social.vivaldi.net/tags/BikeMechanic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BikeMechanic</span></a></p>