the clutch may become brittle if the patina often start at high engine speeds, the clutch disc only measure 181 mm in outside diameter, the clutch linings are thin and are bonded to the metal washers for reinforced clutch linings and prevent its instant destruction if heated, for myself the clutch has been removed twice for other problems arise on occasion and cleaned with her tray mechanism and diaphragm spring lubricated with special high pressure grease clutch softens pedal at least 1/3 of strength, I expected to replace the soon to 30,000km by security because it is original and does not damage the flywheel and the clutch mechanism