Brake Caliper Pistons

[riedrider]

and the internal chambers,

This is sometihng I would not do. Because the internal chambers are black anodized which gives protection against corrosion and wear.
Some month ago I rebuilt a set of calipers to upgrade the front brake of my TDM850.
After disassembly I cleand the pistons first very carefully with a triangular scraper and then with a polish. Afterwards they looked like new.
But they had been in a better condition as those in the picture above.
The caliper housings I cleaned in an ultrasonic bath.



On the next picture you can see anodized surface of the bores for the pistons and the guide areas for the brake pads.
If the surface in the bores is damaged I would look for a replacement.



For use in the TDM I had to change the colour scheme a little bit  :lol



Regards

Guenter