Not to pile on, but just fyi what would actually happen is the piston would come out of the caliper bore, taking lots of brake fluid with it. If it was a front caliper, you'd lose your front brakes entirely.
yes but thats why the front and back brakes are not connected fluid wise. Yes there would be a very large reduction in braking power but they would still be there.
And I have seen pads that were almost worn through the metal and the caliper was not out of the bore. As in there was only about an 1/8 inch of metal between the caliper and disk so Im not certain if it would completly leave the bore if it had to go that extra 1/8 inch to get to the disk. I am not an expert on brakes however and I will concede if someone tells me this is wrong.
