Kogel Kratos disc pads are engineered for the best durability in wet environments and intense brakingCeramic Barrier coating on backside of pads so your brake fluid stays cooler, improving sustained performance and negating any need for finsManufacturing process that bakes pads at 1000 Celsius so their easier to bed-in taking the guess work out of installing your padsKratos pads reach maximum potential with some heat buildup from cornering and descendingNickel and lead free for less impact on the enviroment and creatures that call the trail home47Hylex Flat Mount, Shimano Ultegra RS805, RS505, RS305, RS405, R7000, R8000, R9000, R9100, GRX, M9100SinteredKogelUPC/EAN/GTIN: 735201959962