Description
Meet The New Dura-Ace 9100 Cassette
Upgrade your gearing to the incredible dependability and meticulous engineering of Shimano's Dura-Ace CS-R9100 11-Speed Cassette. 9100 isn't a typo there, it is, in fact, a newly reworked version of Dura-Ace. When the brand introduces a new groupset, you can be sure it's actually boasting improvements you don't have to be in the pro peloton to immediately detect.
Since Dura-Ace is the top-tier drivetrain in the Shimano road lineup, you might be surprised that only the largest five cogs are titanium. That's because—though it's lighter—titanium is generally more prone to wear than nickel-plated steel, and the smaller cogs are more prone to wear than the larger. Because of these material properties, Shimano only uses titanium where the softer metal doesn't create a significant negative impact.
Features:
- Ride with more intuitive gearing on this improved cassette from Shimano
- Precisely machined cogs balance weight and durability
- Carbon and alloy carrier blends low weight and strength
- Titanium (top 5) and nickel-plated steel (smallest 6) construction
- Carbon fiber and alloy carrier
- Available in 11-25t, 11-28t, 11-30t, 12-25t, 12-28t options
- Compatible with Shimano 11-speed hubs
- Weight: 187g (11-28t)
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Reviews
Ordered by Most Relevant First
5 stars
4 stars
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1 stars
Shimano Dura-Ace is the standard all groupset should measure up to
by cjharrer
Competitive Racer
Downingtown PA
4 of 4 customers found this review helpful.
I love the look and polish of Campy, but I switched to Shimano Dura-Ace years ago and haven't looked back. It is in my opinion the best high end groupset for the money. Easy to service, easy to maintain, easy to get parts. The Dura-Ace cassette is lighter than Ultegra and 105, does it really matter - to me yes it does. I have high end carbon whees and bike so I want all weight advantages I can get. This cassette with dura-ace chain and derailleur is quick, crisp shifting!
Reviewed 9/24/2020
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Have always had good wear on DuraAce cassettes
by GhostRider
Cycling Enthusiast
East Coast, Long Island
its a cassette I trust, looks like they have changed the packaging, probably due to supply chain issues
Reviewed 7/20/2022
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The best!
by Anonymous
Cycling Enthusiast
Vista, CA
3 of 3 customers found this review helpful.
I have Dura Ace on both my bikes. A very smooth ride!
Reviewed 8/20/2019
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Second Time Around
by Jim Shannon
Cycling Enthusiast
Knoxville, TN
This is the third cassette & chain of these I've used for Dura-Ace. 1st set I got 9013 miles and 2nd was 8571. Proper maintenance (cleaning and lube) can extend the mileage. When the chain needs replacing, I replace the cassette. Prior to replacing I still was not experiencing any issues. Replaced chain due to recommended measurements.
Reviewed 3/11/2022
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High quality part
by Hank
Cycling Enthusiast
Portland
6 of 6 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
4 of 4 customers found this review helpful.
lots of short, steep climbs and rolling hills
Reviewed 6/22/2017
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Extra for carbon wheel set
by RoboKrause
Manhattan, KS
3 of 3 customers found this review helpful.
Duracesmooth as butter. Had to get an extra for my new carbon wheelset. Didnt wanna keep pulling off my cassette. I do find the 30t a nice bump for those 22% grades I never ride.
Reviewed 8/19/2019
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Shimano parts always work as described and never disappoint.
by OHRider
Cycling Enthusiast
Cleveland, OH
3 of 3 customers found this review helpful.
Transitioning to Shimano Dura-Ace Di2 after many years on Campy mechanical. This cassette forms part of what is a very well designed and reliable drive train.
Reviewed 8/16/2019
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Durable, quality cassette
4 of 4 customers found this review helpful.
30 cog is perfect for rolling terrain.
Reviewed 2/4/2019
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Shimano What can i say!!!!
by Red
Cycling Enthusiast
Woodland Hills, CA
5 of 6 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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Quality as usual
2 of 2 customers found this review helpful.
Shimano high end parts are that , high end and a lot of companies try to copy it but shimano know there stuff. Expensive but worth what you pay
Reviewed 1/28/2019
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