Shimano Dura-Ace 9100 11-Speed Cassette 11-25T

Shimano’s pro-level cassette gets an upgrade in the form of the Shimano Dura-Ace 9100 11-Speed Cassette 11-25T. With five titanium sprockets; this cassette offers ultra-smooth shifting and durability. Both lightweight and ultra-efficient; this cassette features an 11-speed 11-25 gearing ratio.