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After grinding off the lawyer lugs last night I listened for the noise, spotted which side it was happening on and then used my Motherfucking He-Man Strength™ to bend the rotor enough that it shut the hell up. Result!
I did notice a little noise still but only when I cornered to the right. In normal riding it's silent. Guess the forks are flexing a bit. I could bend it more but why push my luck?
hippy-
Glad to hear! (or rather not hear)
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Does that mean the rotor was warped or have you now made it bowl shaped? What benefit does grinding off the lawyer tabs provide?
My Escapade makes a noise at the rear when I ride hard again presumably due to the frame flexing. It's a 132.5mm spaced rear end and the pads never seem to get parallel to the rotor and therefore rear braking is not optimal. I wonder if this a consequence of a 135mm hub on a 132.5 mm frame, if so a 130mm hub would give similar results.
spotter
Cranky
When I've had this problem the rotor was a bit bent, and squeezing the brake just lightly touched it to the rotor evenly through its rotation which stopped the 'tsk tsk'. I realised when it occurred to me that the 'tsk tsk' would be more frequent if it was the pads, on mine it was basically once a rotation, and as the pads stay still and the rotor rotates, it made sense it was the rotor having a kink. You can true a rotor with the a spanner.