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Shimano Dura Ace 11-speed Cassette CS-R9100 11-28


The CS-R9100 is the suitable cassette for new Dura Ace 11-speed group.

Most advanced component group of all time: The Shimano Dura Ace 11-speed Cassette CS-R9100

With the introduction of DURA-ACE R9100, Shimano has reestablished the new benchmark for road performance by improving each component and incorporating its newest digital technologies. DURA-ACE R9100 delivers unparalleled performance, highly-refined ergonomics and immense customization to maximize every rider’s potential.

Engineered for the next generation of race bike, DURA-ACE R9100 offers top-tier performance across numerous configurations. Available with either Di2 electronic or mechanical shifting, for the first time, riders now have the option of premium DURA-ACE hydraulic disc brake performance. New Shimano technologies further integrate the DURA-ACE as a system, including a new power meter, while riders further integrate with their bike through new E-Tube wireless connectivity. Shimano’s Rider Tuned philosophy and customization of the bicycle’s function also expands with a wider range drivetrain that now includes intuitive Shimano Synchro Shift control.

  1. Use: Road
  2. Group: Dura Ace
  3. Model: CS-R9100
  4. Type: HG-EV
  5. Gear: 11-speed
  6. Teeth: 11-28
  7. Compatible chain: HG-EV 11-speed, HG-X 11-speed
  8. Gradation: 11-12-13-14-15-17-19-21-23-25-28 teeth


  1. Spider arm: Carbon
  2. Sprockets (7-11): Titanium
  3. Spockets (1-6): Steel
  4. Lock ring: Aluminum
  5. Weight: 193g