23-10-18, 09:33 AM
A useful tool if you maintain your own brakes, is a set of Sealey VS1806 Brake Piston Removal Pliers, cheapest I've seen is £12.50 from Tools4Trade. These would allow you to turn the piston during maintenance/cleaning etc, so the entire leading edge surface can be visually checked.
Whizz kid sitting pretty on his two wheeled stallion.