CASSETTE SPROCKET, CS-R9100 11-28T, DURA-ACE, 11-SPEED, 11-12-13-14-15-17-19-21-23-25-28T

Description

* Rider tuned gearing* Wide range gear combinations: 11-28T, 12-28T and all-new 11-30T* Tight range gear combinations: 11-25T, 12-25T* Lightweight* Carbon fiber polymer reinforced & Alloy spider arms, 5 titanium sprockets* Refer to Documents and links to find the right product