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High Performance. Low Weight.
The Shimano Ultegra CS-R8000 11-Speed Cassette provides a wide variety of gearing options with a lightweight, durable construction of nickel-plated steel for seasons of corrosion-resistant riding. Utilizing trickled-down design and technology from their Dura Ace series, the R8000 weighs provides top-tier performance at a slight weight penalty. Featuring the same cogs-on-carrier design for the largest 5 cogs, this saves weight and increases strength.
Designed to provide superior rider choice, there's a R8000 cassette to suit nearly every riding style and terrain type.
Gearing and weights:
- 12t / 25t (243 grams): 12, 13, 14, 15, 16, 17, 18, 19, 21, 23, 25.
- 11t/ 28t (251 grams): 11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28.
- 11t / 30t (269 grams): 11, 12, 13, 14, 15, 17, 19, 21, 24, 27, 30.
- 11t / 32t (292 grams): 11, 12, 13, 14, 16, 18, 20, 22, 25, 28, 32.
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.
Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Reviewed 5/8/2023
by Anonymous
Cycling Enthusiast
San Gabriel mtns
Value Rating
Overall Rating
0 of 1 customers found this review helpful.
shifts both up and down
easier to pedal in the big sprocket but goes faster in the little ones
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Solid performer
These Ultegra cassettes never fail me. I stop noticing them until I use another bike with a lower quality cassette and the shifting isn't quite as crisp.
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Awesome
As always Bike Tires is awesome when it comes to service and swift response.
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Reviewed 4/14/2023
by Anonymous
Competitive Racer
Value Rating
Overall Rating
Great cassette, best value
With removal of 0.85 mm from aluminum carrier it will fit on a 10s freehub. Lathe or Milling machine and expertise required. Try it at your own risk.
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Reviewed 2/16/2023
by Max A
Cycling Enthusiast
California
Value Rating
Overall Rating
Practical for every day use.
Ultegra cassette is a go-to gear for every day use/training. Not too expensive as Dura-ace and not too heavy as 105, just the sweet spot for a competitive racer or practical recreational rider.
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Almost seamless
I currently use the Ultegra CS5800 11 speed group set. Actually, this group set comes with the 105 11 speed cassette. My goal was to be able to switch out seamlessly with my current wheels so when I had a chance to buy a similar brand wheel sets but deeper, I bought the CS-R8000 cassette. The installation was simple but you will need a proper torque wrench to fit the Shimano cassette to the proper spec. You may need to adjust the brake pads to make sure there is no rubbing. I did not have to adjust the rear derailleur as the shifting was dead on. The sound coming from the new cassette as the shifting takes place was loud and crisp. The sound level is still crisp but less noticeable as the teeth began to wear and sits precisely on the chain. It feels great riding with a new cassette. I may have eliminated a few grams compared to the 105 cassette. I have put in 200 miles so far and enjoying the new cassette and deep wheels.
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0 of 2 customers found this review helpful.
Ultegra 11-30 cassette
Hard to find.. waited for months for Shimano to get back to work.. BTD kept me updated on revised shipping dates.. finally received! Great fair price. Consider the 30 if your climbs exceed 8~9% on a regular basis.
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Good as it gets
What can you say? Been using Shimano cassettes for years and they are the best! Great price on BTD too.
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Reviewed 1/13/2023
by Sir velo
Competitive Racer
washington
Value Rating
Overall Rating
Shimano Quality
Nice to have an extra at a good price. Wear item you will have to replace, or an extra with different gearing for climbing.
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Reviewed 5/12/2022
by Ron
Competitive Racer
Ann Arbor
Value Rating
Overall Rating
Smooth, quiet, efficient shifting
There's not much to say about this product other than that it is typical Shimano quality. It's smooth, quiet, and shifts efficiently without hesitation. The narrow gear range of this particular cassette was what I wanted for gravel racing.
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Reviewed 11/18/2021
by Kirk
Cycling Enthusiast
Colorado
Value Rating
Overall Rating
Tricker to install correctly than it should be
I had to reinstall it 4 times to finally get it shifting correctly. I am not sure what was wrong on the 3 failed attempts given each of the smaller cassettes should only fit a single position, but I wish Shimano would just make it a single piece.
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Reviewed 12/6/2018
by Aaron
Cycling Enthusiast
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Overall Rating
1 of 1 customers found this review helpful.
awesome
love it... quiet.. use it on sram etap... i think it is better than red cassettes
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Ultegra R8000 11 speed 11-30
Light, look awsome and function very well! Looking forward for many rides together.
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Reviewed 9/17/2018
by Gwpelham
Cycling Enthusiast
Northern Nevada
Value Rating
Overall Rating
3 of 4 customers found this review helpful.
No drop off from DuraAce
Used to replace Dura Ace cassette. Its heavier but no drop off in shifting.
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Reviewed 9/11/2018
by Cat6Junior
Competitive Racer
Georgia
Value Rating
Overall Rating
3 of 3 customers found this review helpful.
Smooth shifting
I have been riding SRAM for the past 10 Years and I changed to Shimano last year. The shifting is smooth as butter and easy on the hands. So far it has been a good change.
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1 of 1 customers found this review helpful.
50 miles a week
Upgraded from an 12-25 105 cassette to an 11-28 Ultegra cassette (hills) and can actually feel smoother shifting with all of the rest of the components remaining 105.
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Reviewed 5/21/2021
by Anonymous
Cycling Enthusiast
Santa Cruz Mountains, CA
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Overall Rating
3 of 3 customers found this review helpful.
Dura Ace quality at Ultegra price point.
Having been devoted to full Dura Ace components and drive chains for over 20 years, I've migrated to full Ultegra without any loss of quality or performance. Even with marginal weight gains, the significant cost savings of Ultegra makes it a no-brainer. If I were a paid pro I'd surely go full Dura Ace, but as an avid high mileage endurance road rider footing my own expenses Ultegra has never disappointed.
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Reviewed 4/28/2022
by Anonymous
Competitive Racer
SW Florida
Value Rating
Overall Rating
No shortage of genuine Shimano parts at BTD
Fair price on genuine parts that are in stock and shipped quick. Thanks BTD!
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0 of 1 customers found this review helpful.
Nice update
Having an 11 28t cassette on my trek street bike U found it cumbersome going up steep hills. The 11 30t cassette eased my efforts. I called with questions and was completely satisfied with the expertise i was given. Very happy with my experience.
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Reviewed 12/24/2020
by Cjharrer
Downingtown Pa
Bought fire indoor trainer
Was just going to buy a 105 cassette fit direct drive trainer, but the sale price of this was cheaper. As expected, great, crisp shifts, no skips and very smooth.
Highly recommend.
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A guide to understanding and calculating bicycle gear inches.