SHIMANO Dura-Ace R55C3 Carbon Brake Pad Inserts - Y8FN98140Includes Pad inserts Rim specific compounds are availble Replacement pads for: Dura-Ace BR-9000, BR-9010, BR-7900, BR-7800, BR7700; Ultegra BR-6800, BR-6700, BR-6600, BR-6500; 105 BR-5800, BR-5700, BR-5500; Non-Series BR-R600, BR-R561, BR-R560, BR-CX70 R55C4: Dura Ace 9000: high-end race brake pad with excellent wet and dry performance R55C4-1: 1mm thinner for extra clearance with wider rim profiles; Designed to fit 24-28mm wide rims R55C 1mm: 1mm thicker pads are stock rubber but 1mm thicker High performance are better in wet weather Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.