JayBrake J-Six Ultra Six Piston Front Left Brake Caliper - Chrome 376T-162 Machined from billet aluminum and feature smooth face with bevel cut edges Six progressively sized pistons (three per side) provide optimal heat distribution and pad wear Provides optimal lever feel and braking response Dual piston seal design incorporates a wiper seal for a long, problem free life of pads and rotors Direct bolt-on design