These pulleys will fit perfectly on your Shimano Dura Ace 9000 and Ultegra 6800 derailleurs, and SRAM 10 and 11 speed road derailluers. The narrow wide tooth profile on the top pulley helps to retain shifting accuracy by pushing every link of the chain.
ROAD 12T Narrow/Wide Jockey Wheels
One year 'very few questions asked', plus aditional year on the condition that bearings are cleaned, regreased, and new seals fitted at one year mark. Must be performed by professional bicycle mechanic.
Follow these simple steps for an industry leading TWO YEAR WARRANY!