
Let’s reduce corrosion, resistance, and weight with anodized aluminum pistons in the lubrication system.

By checking things out, you can even see the tolerances in box-unit quantities. It’s interesting stuff.

The rear uses a steel piston kit. I primed the inside just to be safe.

The inside is fine as long as corrosion is removed. Unless it’s really bad, but polishing plating makes it rust easier, and removing anodizing makes it corrode more easily.
I’ve been thinking lately that the key is preventing corrosion from being triggered in the first place.
We apply metal rubber firmly to the seal groove and insert the piston while checking how it fits.
By the time break-in occurs, the piston should move as much as we’ve input, and after release it should return smoothly.
Since there’s also the condition of the disc, the condition of the pads, and the condition of the caliper and master, it’s quite a tricky area.

I’ve drilled a hole and installed a beta pin as a safety precaution, so please be careful when removing it.
