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May 28, 2025 · Use Isopropyl Alcohol (99%): Spray on rotors and pads to remove oil/grease. Avoid Compressed Air: Blasts can push debris into caliper pistons. Critical Tip: Never use WD-40 or solvents —they degrade seals and contaminate pads. Bleeding removes air bubbles and old fluid, restoring lever firmness. Annual Bleeding: For casual riders.
Jun 2, 2013 · Remove the disk brake pads if they become contaminated with oil and soak them in isopropyl alcohol. You don't need to submerge them and leave them sitting in the alcohol; simply pour on the alcohol to saturate them.
Aug 2, 2021 · The cleaner can be used on brake linings, brake shoes, drums, rotors, caliper units, pads and other areas of the braking mechanism while they’re still intact.
Dec 1, 2008 · Make sure you are using 90+% Isopropyl Alcohol, and not using 70% (Rubbing) Isopropyl Alcohol, for cleaning. The rubbing type alcohol includes some oils for lubrication (eg. rubbing) and that's something you don't want on your rotors or pads.
Dec 4, 2024 · For brake pads showing signs of contamination, lightly sand the surface with fine-grit sandpaper, then clean them with isopropyl alcohol. Be sure to work gently—this process restores braking efficiency without ruining the pads.
Aug 12, 2018 · Remove wheel and pads. Clean rotors and calipers thoroughly with isopropanol to remove all traces of lube. Spray isopropanol around the caliper pistons to get out any lube that can affect the piston seals. Dry off with a rag. Replace the pads with new ones.
Jan 4, 2023 · I like to first wipe down my rotors with a paper towel with glass cleaner and alcohol on it to get the dirt off, and then do another pass with just alcohol to get off any remaining residue.
Aug 12, 2025 · Isopropyl alcohol brake pads (often 70-99%) is an excellent and widely available option. You can also use mild dish soap mixed with water in a pinch, but isopropyl alcohol is more effective for grease.
Apr 19, 2023 · I don't think you should be too concerned about the residue here. There is far more dirt/dust/grime that's kicked up during a ride than you'll get on your rotors or pads from alcohol.
Feb 5, 2019 · Yes, I use it to clean the discs (transporting on a tow bar rack exposes the discs to oily residue from the roads) but I mostly use IPA as a general degreaser. Cleaning up after brake bleeding, wiping over the frame before applying helicopter tape, wiping over rims and forks before applying decals.
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