Quote:
Originally Posted by Dave-ROR
Backing plates of the pads grinding through the rotors.
Those don't appear to be differential bore calipers.. ie not STI calipers.
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They probably are; the outer bore shapes are not different, only the interior piston bore is different. I just packaged my calipers up so I can't take a look at them, but I'm pretty sure the outer shape isn't different from forward to trailing piston.