Avid's Elixir 1 Hydraulic Disc Brake offers excellent power and modulation. Avid's Taperbore technology and Power Reserve Geometry deliver great control and lever feel. Increased power comes courtesy of a super-stiff, 2-piece caliper that contains larger pistons and DOT 4 fluid for better heat dissipation and resistance to brake fade. Plus, the Elixir's unique integrated reservoir provides a major weight reduction and a sleek look. It even comes complete with Avid's 160mm CleanSweep rotor.