Two-way brake system: Pushed by the piston, the two bike brake pads will clamp the disc rotor to brake from both side, which prevent the rotor from deformation so as to prolong its life. Hydraulic two-way brake set suitable for mountain bike.<br /><br /> Features:<br /> Left and right brake lever fit for 22mm handlebar.<br /> Fit for 160mm bike rotor(not include).<br /> Hydraulic piston two-way brake prolong the life of rotor.<br /> Integrated brake lever and oil tube prevent oil leak.<br /> Aluminum alloy constructed.<br /> Suitable for mountain bike.<br /><br /> Specification:<br /> Color: Black / Red / Purple / Silver (optional)<br /> Model: HB-875<br /> Material: Aluminum alloy <br /> Oil tube: Front-75cm / Rear-135cm <br /> Package weight: 620g / 1.3lb <br /><br /> Package List:<br /> 2 * Hydraulic Disc Brake