Brembo PS11C Gold Rear Brake Master Cylinder Specifications 40mm Mounting Holes (centre to centre) 11mm Diameter Piston Inline exit Anodised Gold finish Made from cast aluminium Brake Master Cylinders are used on thousands of motorcycles as OE fitment and can also be used extensively in the aftermarket. This part was designed specifically for racing application, for this reason, its fitting on standard motorcycles may require the use of specific adapters not supplied with the product, and must be carried out by highly qualified and competent professionals in the racing sector. About Brembo is a highly regarded leader in the international market for the production of brake discs, callipers and completer braking systems. Based on its unique know-how, it is capable of.