CASSETTE SHIMANO CS-R9100 DURA-ACE 11-28 11S.

Cassette Shimano Dura-ace 11-28 11 speed. Shimano product code: CSR910011128. The new 11-30 cassette with hyperglide provides the Dura Ace R9100 series, on the back end of the drivetrain, with a wider range of gradation. The 11-30t cassette is an addition to the cassette line up and expands the range of applications. No matter if, you are up shifting or down shifting, the Dura Ace R9100 cassette stands out through reliable and easy shifts. Sprocket Material: steel (sprocket 1 to 6), titanium (sprocket 7 to 11). Compatible Chain: HG-EV 11-speed, HG-X11.