Made from forged aluminum body, the Classic line master cylinder by Kustom Tech in Italy comes in fully polished 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. The included banjo bolt is 10mm x 1.00.