plexiform Posted August 19, 2017 Share Posted August 19, 2017 Anyone know what this noise is? Seems to be getting worse. Has been present for some time now. Bike feels fine while running. https://m.youtube.com/watch?feature=em-upload_owner&v=XpToBiy6e_4 Link to comment Share on other sites More sharing options...
docc Posted August 19, 2017 Share Posted August 19, 2017 First thing, you can remove the forward facing plastic cap over the brake pads and use a brake parts cleaner to clean that area out. Better yet, remove the caliper, remove the pads and inspect their thickness and wear. Using brake parts cleaner, chock one piston and work the other in and out, cleaning with the spray. Repeat with the other piston. Clean, polish, and lubricate (silicone grease) the pad guide pin. Bleed the fluid with the nipple facing upward. 2 Link to comment Share on other sites More sharing options...
docc Posted August 20, 2017 Share Posted August 20, 2017 It's also worth pulling the wheel and feeling that the wheel bearings and rear drive bearings turn smoothly. Third thing: shaft lubrification. 1 Link to comment Share on other sites More sharing options...
coreytrevor Posted August 20, 2017 Share Posted August 20, 2017 I agree with the brake making the noise. Easiest way to check, take out 2 caliper bolts, remove caliper, see if noise goes away. I don't think bearings or anything internal would sound like that. 2 Link to comment Share on other sites More sharing options...
Chuck Posted August 20, 2017 Share Posted August 20, 2017 Yep rear brake. My Centauro freaked me out the first time it did it. 1 Link to comment Share on other sites More sharing options...
plexiform Posted August 20, 2017 Author Share Posted August 20, 2017 Thanks for the input. Will service the brakes and report back. Link to comment Share on other sites More sharing options...
Cabernet Posted August 22, 2017 Share Posted August 22, 2017 Concur, it is the rear brake groaning. Sent from my D5803 using Tapatalk Link to comment Share on other sites More sharing options...
Lucky Phil Posted August 25, 2017 Share Posted August 25, 2017 Rear brake pads. Ciao 1 Link to comment Share on other sites More sharing options...
coreytrevor Posted August 25, 2017 Share Posted August 25, 2017 Was it the brake? Link to comment Share on other sites More sharing options...
plexiform Posted September 13, 2017 Author Share Posted September 13, 2017 Sound is gone. Bled the rear brake and changed the pads and cleaned the caliper and rotor. Used 5.1 fluid for replacement. Pads are now EBC. Link to comment Share on other sites More sharing options...
Chuck Posted September 13, 2017 Share Posted September 13, 2017 It'll come back. 1 Link to comment Share on other sites More sharing options...
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