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12-25T
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12-25T
Shimano Ultegra CS-R8000 11 Speed Cassette
Shimano Ultegra CS-R8000 11 Speed Cassette

Shimano
Ultegra CS-R8000 11 Speed Cassette

Mfg PartNum:
  (44 customer reviews)
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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.

 

Cassette Type: Shimano 11 

12-25T

Mfg PartNum: ICSR800011225 

11-25T

Mfg PartNum: ICSR800011125 

11-28T

Mfg PartNum: ICSR800011128 

11-30T

Mfg PartNum: ICSR800011130 

11-32T

Mfg PartNum: ICSR800011132 

14-28T

Mfg PartNum: ICSR800011428 

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
(36)
(8)
(0)
(0)
(0)
(82%)
(18%)
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(0%)
Cassette works well
rating
by Daniel
Cycling Enthusiast
Tualatin, OR

About every 4th chain I replace my cassette, and this one does the job well.

Reviewed 10/12/2020
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32t is just that little extra
rating
by GDS PDX
Cycling Enthusiast
Portland, Oregon

I got a set of climbing specific wheels and wanted a cassette that would leverage that even further. The 32-11 was a good call. I really don't use the 32 that often (most climbs are fine with the 30) but when you hit a wall and need just a little more leverage and a little more confidence, the 32 is nice to have. I was worried about chain length because my other wheelset has a 30-11, but I have had no problem. If I was moving from a 28 to a 32, I'd probably need an extra link or two, but the 30-32 switch has performed fine on an Ultergra Di2 longcage derailleur.

Reviewed 5/21/2020
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Ultegra Quality
rating
by ShayneB
Louisville, KY

Solid cassette at a great price. Installed on a new wheelset. Shifting is smooth and precise. Does everything it is designed to do well.

Reviewed 9/20/2018
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THE RIGHT PRICE FOR GOOD VALUE
rating
by THE BRAD
Cycling Enthusiast
ST. LOUIS, MO

I LOVE THE CASSETTE AND SHIMANO HAS BEEN EXCELLENT DRIVE TRAIN FOR ME SINCE 1986

Reviewed 5/28/2020
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rating
by good Shop
Cycling Enthusiast
good Shop
0 of 1 customers found this review helpful.

good Shop

Reviewed 12/10/2019
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rating
by good Shop
Cycling Enthusiast
good Shop
0 of 1 customers found this review helpful.

good Shop

Reviewed 12/10/2019
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rating
by good Shop
Cycling Enthusiast
good Shop
0 of 1 customers found this review helpful.

good Shop

Reviewed 12/10/2019
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Just great!
rating
by Anonymous
2 of 2 customers found this review helpful.

Best for uphill.

Reviewed 11/28/2019
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Great product that I use on all my bikes
rating
by Anonymous
Competitive Racer
0 of 2 customers found this review helpful.

Shimano Ultegra is installed on all my bikes. Never fails me.

Reviewed 1/6/2019
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Five stars, of course its Shimano!
rating
by Mark12
Downers Grove, IL

Just updated my Trek Madone with this wider range cassette. It is perfect!

Reviewed 8/9/2018
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Smooth Shifting
rating
by DPK
Competitive Racer
NorthWest NJ

This cassette works like a dream. Smooth shifting and I always seem to have the gear I need. Nice!

Reviewed 6/14/2018
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Great cassette
rating
by hzayas42
Jersey

This cassette makes my rides more enjoyable, I expect it to last a long time given Shimanos reputation.

Reviewed 6/4/2018
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Works flawlessly like most Shimano products...
rating
by chrichardsm6
Cycling Enthusiast
Walnut Creek, CA

I use it for mountain climbing. Long grades above 10% require me to stand in a 34x28, so this just makes the difference between sitting and standing.

Reviewed 6/1/2018
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Performed as advertised. Always good great from shimsno
rating
by Anonymous

Where is your bike works at an excellent job of getting me the product the product was great and the service was even better. I like their return policy

Reviewed 7/25/2019
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Shimano Ultegra 11-30
rating
by Topcow
Los Angeles
1 of 1 customers found this review helpful.

Im really enjoying this new cassette for climbing. Im running this 11-30 with a SRAM RED mid compact setup. Very smooth shifting.

Reviewed 1/28/2018
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Good Price, great service - works as one expects from Shmano
rating
by Bob W
Cycling Enthusiast
Portland, OR

Not much to say about a cassette - other than works well, WBW has great prices and fast service - and Ultegra level has great value.

Reviewed 1/25/2018
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Perfect shifting
rating
by Fairlyunreliable
Portland
1 of 1 customers found this review helpful.

The Ultegra cassette has always been the best balance of price and performance. With the release of the 8000 series comes the new 11-30 cassette, which I really loved for cyclocross. Having the 30t was nice to have on steep courses over the 28 but only a little bit heavier.

Reviewed 1/1/2018
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Ultegra 8000 cassette
rating
by Mark lipchick
Eugene, OR
2 of 2 customers found this review helpful.

Excellent substitute for dura ace with better wear characteristics and only a slight wieght penalty, much lighter on the wallet too.

Reviewed 11/6/2017
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Good Product - Great Bang for the Buck.
rating
by Texas Tom
Cycling Enthusiast
Pflugerville, Texas

works well & easy to install

Reviewed 4/11/2019
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Consistent, effective
rating
by Timberwolve17
Central Tx

With most cycling parts, it's about will it make me faster?

I purchased this cassette for a second wheelset. The cassette did not make me faster, but it did let me use my new wheels. Perviously my groupset was shimano 105, and I did not notice any significant differences upgrading to Ultegra.

Would I buy this again? Yes, but only because Dura Ace is such a dramatic jump up in price

Reviewed 10/24/2020
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