Made from forged aluminum body, the Classic line master cylinder by Kustom Tech in Italy comes in a raw aluminum body, lever and finned cover held in place with two screws. The compact size with finned cover and the smooth lever will give a very retro-style look for all custom projects. It fits all 1″ handlebars and has a 14 mm bore size. For use with DOT 4 or DOT 5 brake fluid. Accepts a 10mm X 1.0 banjo bolt (included) Additional 3/8″ / 10mmbanjo bolts and brake line components can be found here.