Shimano has got the 11-speed gig nailed. They've thought of absolutely everything when it comes to optimizing performance. And that includes the new CS-9000 cassette. Available in a range of options, including the wide-range 11-28 version, the CS 9000 cassette is Rider-Tuned with close ratio gearing to deliver crisp, smooth shifts for every rider, every time.
Hyperglide sprockets feature computer-designed tooth configuration with contoured shift gates for a smooth, precise shift even under load
Carbon mid spider carrier reduces weight and adds rigidity
Titanium sprockets (16T and bigger) shave grams
Close ratio 11-speed gearing improves cadence for better energy transfer
Compatible with Shimano 11sp free hub bodies only, check wheel manufacturer's specs to confirm 11 speed compatibility
Shimano Dura-Ace CS-9000 11-Speed Cassette
Top five cogs--titanium; Bottom six cogs--steel, Nickel-plated finish; Carbon mid spider carrier