The new version of L03A, Shimano L05A-RF resin disc pads with Ice-Tech cooling fins are 40% more wear resistant than their predecessor. Recommended for Dura Ace, Ultegra and 105 disc brake calipers. These pads feature an alloy and steel back plate using Ice-Tech heat radiation cooling fins with a resin braking compound. Compatible with BR-R9170, BR-R8070, BR-R7070, BR-RS805, BR-RS505, BR-RS405, BR-RS305, BR-U5000.