Product Info New resin pads have 50% more durability! Pair of K-Type disc brake pads without fins, for one caliper Resin compound, for improved modulation & lower noise Steel backplate for lower cost or Ti backplate for improved heat management and lower weight Fits all Shimano flat mount gravel & road disc calipers, including Dura Ace BR-R9170, Ultegra BR-R8070, 105 BR-R7070, GRX BR-RX810, BR-RX400 and XTR BR-M9100 calipers Interchangeable with L-type finned pads