Built using the same architecture as the Guide brakes, but with larger fluid reservoir and pistons, it delivers even more power and heat management. FEATURES: Four aluminum pistons provide the stopping power and excellent heat management Stainless steel heat shield breaks the thermal connection between the brakes pads and the caliper body, which reduces fluid temperature Forged aluminum lever body and blade Bleeding Edge design for easier maintenance,Includes steel-backed sintered metal pads SPECS: Rotor Included: No Color: Black Pad Compound: Sintered Adjustable Contact Point: No Hydraulic Fluid Type: DOT Brake Lever Actuation: Hydraulic Designed for ebike: Yes Adjustable Reach: Yes Brake Caliper Type: Post Mount