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  • Choose among 11 - 25, 11 - 28 or 11 - 32 sprocket combinations; these gearing ratios provide combinations that work particularly well when combined with compact gearing
  • The Shimano Ultegra CS-6800 11-Speed Cassette features a nickel-plated finish


  • Save 10%! This item qualifies for our drivetrain bike part discount. See Details

View all Shimano Bike Cassettes

REI membership


Best Use Road Cycling
Material(s) Nickel-plated steel
Speeds 11-speed
11 - 25
232 grams
11 - 28
251 grams
11 - 32
292 grams
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Hi, I am interested in this cassette. Currently i use a 11-25 Shimano Tiagra cassette and my wish is to upgrade to this one for easier hill climbs. Does it mean i will ALSO have to change the current chain, rear derailleur and the 9 speed flight deck?

Asked by: SammyChege
​If you currently have a 9-speed drive train on your bike and would like to replace the cassette with this 11-speed cassette, this will involve replacing the chain, rear and front derailleur, shifters and the flight deck and possibly other parts.
Answered by: REIservice
Date published: 2016-11-09
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