Shimano BR-5600 R55C2 cartridge type brake shoes - pair
Amazon.co.jp: Shimano BR-5600 BR-5600-L BR-5700-S Y88T98040 Repair Parts Cartridge Type Brake Shoe Set (Left and Right Pair/Silver) : Sports & Outdoors
Shimano Dura-ace Ultegra 105 R55C4 Aluminum Rim Carbon Rim Bike Cartridge Brake Shoes Shimano genuine goods bike accessories - AliExpress