Model Number CS-9000
Series DURA-ACE
Number of Sprockets 11-speed
Chain Compatibility HG 11-speed
Option 1 11-23T
Sprocket Sizes 11,12,13,14,15,16,17,18,19,21,23
Option 2 11-25T
Sprocket Sizes 11,12,13,14,15,16,17,19,21,23,25
Option 3 11-28T
Sprocket Sizes 11,12,13,14,15,17,19,21,23,25,28
Option 4 12-25T
Option 5 12-28T EV-CS-9000-3324
