Please help me, I need to figure out what's wrong here
So I went for a ride, rear brake seized on me. I applied it once and about 2 miles later the drag was so much I stopped, the disk was smoking and it was hot hot hot.
Let it cool down, it backed off a bit so I was able to ride it home.
I took the back caliper off to see what the problem was.
I think my pads are screwed
I turn them over and see this, notice the ring of oil (?) or brake fluid on one
And the piston in the caliper has oil on it too, there was more, all around but I wiped some off when I touched it
So what do you all think?
If I press the brake pedal, the piston moves out a little, but doesn't retract at all. Should it? (this is when it's not installed on the bike.)
It is super stiff, by hand I cannot move the piston at all. Is this normal, or is it seized? How much should it move? I can move it with a clamp but not very easily