Hayes Stroker Carbon Disc Brakes 2010: Radial design, sculpted cast aluminum master-cylinder with integrated reservoir; carbon fiber lever blade with an indexed reach adjuster dial. Symmetrical, flip-flop lever design with removable bar clamp. Forged aluminum caliper with titanium bridge bolts, aluminum backed pads, insulated pistons, caliper positioning window (CPW), and a patented tool-free pad retention system. Rotors and adapters sold separately.