Shimano CS-R9100 11-Speed 11-28 Cassette

Using a carbon fiber and alloy spider and five titanium sprockets, the DURA-ACE R9100 cassette provides accurate shifting and light weight to the most discerning road cyclists on the planet.

• Rider tuned gearing
• Lightweight
• CFRP & Alloy spider arm, 5 titanium sprockets