Shimano Dura-Ace CS-R9100 11sp Cassette

Additional gear ratios: Dura-Ace remains 11sp "Yes!!" but can accommodate larger cogs with Shimano now offering a 11-30 cassette and the rear derailleur able to accommodate a 32T.

With the inclusion of the new 11-30T R9100 cassette, DURA-ACE expands gearing options further than ever.

• CFRP & Alloy spider arm, 5 titanium sprockets for lightweight performance
• Expanded Rider Tuned gear combinations:
  • 11-25T, 11-28T, 11-30T (New), 12-25T, 12-28T
• Weight: 175g (11-25T), 193g (11-28T), 211g (11-30T), 189g (12-25T), 205g (12-28T)