Organic Semi Metallic Disc Brake Pads Fits Fits Shimano BR Models: Saint M810, Saint M820 ZEE M640 H01A, H03A Bengal Models: Helix 4X D01S, D02S Organic Semi- Metallic Compound / Steel Back Plate Fits Shimano BR Models: Saint M810, Saint M820, ZEE M640 H01A, H03A Bengal Models: Helix 4X D01S, D02S