Bleeding Edge™ – New bleed porting and fluid path make it easier to push fluid through the caliper for quick and easy bleeding, dedicated bleed adapter for the S4 caliper plugs into the bleed port and seals the system to minimize air contamination and fluid loss.

DirectLink™ – SRAM's DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake. It offers a no-nonsense solution to give you precise control.

Lever Pivot Bearings – Precision sealed bearings at the lever point enhance the clean, crisp lever actuation and consistent, light, one-finger feel.

Timing Port Closure – A hydraulic brake's timing port is the connection between the reservoir and the lever cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, pressurizing the system. SRAM's timing port closure system features durable seals and an ultra-smooth cylinder bore finish producing dependable braking power and consistency.

Blade Material – Carbon

New Two Piece, Two Piston Caliper – Superior heat management and piston actuation.

Pads Included – Steel-Backed Organic

Fluid – DOT 5.1