Warped rotors?

[peterbaron]

Ferret, yeah, he was riding the brake and overheated the rotor.

I'd do first what Powerdubs said and then check the runout. Me though, I'd check the runout before getting the new pads

IN GENERAL TO ALL:
STOP REPLACING PARTS PRIOR DIAGNOSIS..
IF ROTORS ARE WARPED = ONLY SOLUTION IS REPLACEMENT. PERIOD!!!

First, take a visual look at rotor, if it has baked in pad imprint or rusty spot line across rotor it will be vibrating upon brake application ( and mostly front). This may happen after long storage (and moisture) or after washing bike and not spinning it after to dry out brakes = rust just LOVE this condition. You may help to certain point by deglazing rusty spot...but if it is too much or no help = replacement.
Use a dial gauge to check run out... you can also check thickness of your rotors at several different spots by using micrometer...compare with specs = always
If rotor is overheated ( for whatever reason), find out why = cure it and replace rotor!!!!.
PRIOR REPLACING ROTOR = CLEAN CONTACT SURFACE AND TORQUE IT DOWN TO PROPER SPECS.
Cheers to all CB riders,
Peter
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'13CB, 42K