Hate to give another arrow for the "disc brakes are too complicated/need too much maintenance" crowd, but I got a little squeal in the rear caliper last week--Ultegra 8070--and decided to pull the pads for a proper cleaning. The bolt/axle that keeps the pads in place (and has its own retaining clip) was so tightly bonded/corroded that it fought mightily to get out and deformed upon removal. A few days later same thing happened to one of our customers on a bike with only a couple thousand miles on it (mine is about 2 years old), only his bolt failed completely. Customer is a toxic sweat guy; I sweat pretty heavily but haven't had the corrosion issues some do. Anyway, not a bad idea to crack these open and give a touch of grease or antiseize to threads. This is going to start showing up as these systems start to age.
Bookmarks