Brake Caliper Pistons

[Paul]

I once had a problem with both front discs binding on the pads.


There was no corrosion on the pistons, but the seals were not pulling the pistons back fully when I let off the brake.


The cure was new seals.


I reckon the cause was either toasting the front brake doing the Hard Knot & Wyrenose pass twice as fast as I could
Or
Possibly topping up the system using DOT3 brake fluid..... I think it was DOT3, or if it wasn't the wrong brake fluid.