Kool-Stop KS-D640S Shimano D-Series Sintered Copper Plate Disc Brake Pads

Kool Stop Disc Brake Pads are engineered with high-performance, rotor-friendly compounds specifically designed for heavy-duty Shimano 4-piston braking systems. Built on durable steel backing plates, these pads offer the reliability and heat management required for gravity-fed riding and high-torque electric bikes.

Wide Compatibility: Specifically designed for Shimano 4-piston calipers including XTR (M9120), XT (M8120/M8020), Saint (M810/M820), and Zee (M640), as well as compatible TRP and Tektro models

Organic Compound: A versatile, all-conditions resin-based pad that offers high performance, excellent modulation, and a quick break-in period

Sintered Compound: A metal-based compound designed for extreme downhill environments, providing maximum durability and resistance to brake fade

Electric Compound: An e-bike specific formulation featuring an integrated ceramic barrier to minimize heat transfer to the hydraulic fluid during prolonged braking

Rotor-Friendly Engineering: All compounds are developed to be gentle on rotors while providing consistent stopping power throughout the entire life of the pad