These pulleys will compliment your Shimano 11 speed and Campagnolo 12 speed derailleurs. They also work well for Sram Etap 11 and 12 speed, just select your favorite from the dropdown menu. Choose road seals for road use and cross seals if you plan to go off-roading or frequently ride on wet roads. If you are looking for oversized pulleys for the latest generation Shimano derailleurs, look here . Compatible with: Shimano 11 speed Road and MTB Campagnolo 12 speed Etap 11 and 12 speed **please note these pulleys are not compatible with Dura Ace 9000 derailleurs. For these, pick any 11 tooth pulley set.