My rear brake is humming so bad that after a few hours on the trail it loosens the rear axel (it's been tight).
I've resurfaced both rotors, with fine grit sand paper and scotch brite pads, tried new brake pads after resurfacing old ones, swapped out back rotor for the front rotor (back still hummed while front didn't.), cleaning thoroughly with isopropyl alcohol before, durring and after each "trial".
Brakes: Avid Code 5 8" rotors (stock rotors)
Frame: On One 456 Summer season
Hub: Transition Revolution rear with 15" quick release axel
What else could it be?? Could the rotor have to many vents so the pad gets caught up in them? Rear axel loosening? Could the vibrations from the humming cause that, or does that sound like a totally different issue? Does it have to do with the frame and brake combo (the resonance of the 8" rotors is harmonizing with the frame somehow (maybe I'm thinking too much...)?
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Thread: Code 5 Endless Humming!!!