The rear brake on my Dads bike has developed a nasty howl. Shimano SLX lever, XT caliper, 2 piston. 180mm centerlock shimano rotors.
I've done everything I can think of, so I need some new ideas. Done so far:
- sanded the rotor
- sanded, cleaned (rotor cleaner) and re-bedded the pads (1 instance of each)
- Replaced the pads and then re-sanded/re-bedded after the howl continued
I'm wondering if the rotor is finished because I can't think of what else to do. Burning and turfing pads is getting expensive.