Chairman of the Bored
Join Date: May 2004
Location: St. Petersburg, FL
Bikes: 2004 Raleigh Talus, 2001 Motobecane Vent Noir (Custom build for heavy riders)
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Originally Posted by ChiliDog
No pads on disc brakes. Take it to the shop.
there are pads inside the calipers. All brakes have a pad of some sort, even drum brakes.
Now that aside, the pads on disc brakes are made to very fine tolerances, as is your disc...even higher tolerances than bike rims and standard brake pads. What this means is smaller peices of grit just might be large enough to gouge into your disc, that's the squealing sound you hear.
What's key is to keep your disc clean. I use isopropyl alcohol myself, only beacuse I have practically liters of the stuff sitting around. Also make sure your calipers and padds are of reasonable condition. Calipers will go out over time (many years, not months or such), and pads will wear down, or possibly chip, like mine did when I was being a gorilla and practically slamming my wheel back on, and managed to get that right angle that I chipped a corner off my pad.
when pads get worn or damaged best bet is to replace the pad as soon as you can.