Shimano D03S-RX Resin Disc Brake Pad for M8020/M820/M640/M6120

The Shimano D03S-RX is a third-generation, 4-piston resin (organic) disc brake pad. Designed without radiator fins, it delivers strong stopping power, exceptional modulation, and quiet operation for mountain and trail riding. [1, 2, 3, 4, 5]Key FeaturesLining Material: 3rd Generation Resin compound for excellent dosage and initial bite.Wear Resistance: Offers 40% better durability compared to its predecessor, the Shimano D01S.Low Noise: Provides quiet, smooth operation even in various weather conditions.Modulation: Yields a progressive, highly controllable feel, which is ideal for loose or sketchy terrain.Backing Plate: Stainless steel for optimal strength and heat dissipation.Pad Shape: Narrow type, D.Compatibility: Made specifically for 4-piston hydraulic disc brake calipers. [1, 2, 3, 4, 5, 6, 7, 8, 9]Caliper CompatibilityThe D03S-RX is officially compatible with the following Shimano 4-piston brake systems: [1, 2, 3]Deore XT: BR-M8120, BR-M8020SLX: BR-M7120Deore: BR-M6120, BR-M5120Saint: BR-M820, BR-M810ZEE: BR-M640CUES: BR-U8020Non-Series: BR-MT520, BR-MT420 [1, 2, 3, 4, 5]Pros & ConsPros: Smooth and consistent stopping power; less prone to squealing; very gentle on brake rotors; heats up quickly.Cons: Prone to fading during prolonged or extremely steep descents; tends to wear faster than metallic pads, especially in wet or muddy conditions. [1, 2, 3, 4, 5]Each package includes two brake pads (one pair for a single caliper) and the pad return spring