The BKM-1.2 Hydraulic Brake Bleed Kit will bleed most models of mineral oil-based hydraulic bicycle disc brakes, including models made by Shimano, Magura, TRP, Tektro, Trick Stuff, SRAM DB8, Campagnolo, Promax, Clarks, and Nutt. Bleeding of hydraulic brakes removes air bubbles and contaminants from the braking system, for long-lasting components and peak performance.