Shimano BR-R9270 Resin Road Disc Brake Pads & Spring BR-R9270 Resin pad & spring K05S-RX also BR-M9100. The Shimano BR-R9270 Resin Road Disc Brake Pads and Spring are designed to perform well in all conditions, ensuring excellent stopping power at all times, even when wet. These brake pads are fade-resistant, produce minimal noise, and have a longer pad life than their competitors. The radiator fins incorporated in the design aids in cooling which increases performance and the lifespan of the pad. The Shimano BR-R9270 Resin Road Disc Brake Pads & Spring are suitable for use with the following brake types:BR-R9170BR-R8070BR-RS805BR-RS505BR-RS405BR-RS305.