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Shimano
Dura-Ace CS-9100 11-Speed Cassette

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What a spread.

The Dura Ace CS-9100 11-speed cassette uses a carbon / alloy carrier and titanium for the largest five cogs for lightweight performance that meets the demands of the world's best riders. This latest iteration introduces a new 11-30 gearing option for those who are hitting the steeps or equipping their adventure bikes with Shimano's latest Dura Ace group.

Claimed weight is 175 g (11-25 cassette).

Cog sizes:

  • 11-25T: 11-12-13-14-15-16-17-19-21-23-25
  • 11-28T: 11-12-13-14-15-17-19-21-23-25-28
  • 11-30T: 11-12-13-14-15-17-19-21-24-27-30
  • 12-25T: 12-13-14-15-16-17-18-19-21-23-25
  • 12-28T: 12-13-14-15-16-17-19-21-23-25-28
 

Cassette Type: Shimano 11 

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Durable, quality cassette
by Stephen
Mi

30 cog is perfect for rolling terrain.

Reviewed 2/4/2019
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High quality part
by Hank
Cycling Enthusiast
Portland
3 of 3 customers found this review helpful.

I needed a second set for my trainer and wanted to match exactly my bike to keep change over time at a minimum. Good price and high quality.

Reviewed 9/25/2017
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seamless, lite shifting, using durace electronic shifters
by Imad
Daily Commuter
Portland, OR
2 of 2 customers found this review helpful.

lots of short, steep climbs and rolling hills

Reviewed 6/22/2017
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Shimano What can i say!!!!
by Red
Cycling Enthusiast
Woodland Hills, CA
2 of 2 customers found this review helpful.

Shimano has always come out with great products and always cutting edge in technology. This cassette by far is the best cassette i've ever used, so light and gotta love that 30 gear...

Reviewed 9/7/2017
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