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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:
$82.99-$88.99
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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 

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Reviewed 8/27/2019
by Tuabui
Charlotte NC
Overall Rating
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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Reviewed 8/8/2020
by Anonymous
Overall Rating
Great product

It is well made and worth the extra money over the 105.

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Reviewed 6/15/2020
by EnriqueC
Cycling Enthusiast
Near Memphis TN
Value Rating
Overall Rating
Much better than 6800

Every 8-10k miles or once a year and every other Dura-Ace chain, I get a new cassette. This new 8000 series makes shifting smooth and reliable. It's easy to clean and to install.

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Reviewed 6/5/2020
by Anonymous
Overall Rating
Good performance !

Work perfect with my groupset !

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Reviewed 5/29/2020
by Anonymous
Competitive Racer
Huntsville, AL
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Does what it's supposed to

Nothing overly special. It's a cassette that works well. Shifting is smooth and cassette is quiet in operation. I am using a KMC X11SL chain with no problems. I've had Dura-Ace cassettes and from a functionality standpoint there is no difference with the Ultegra cassettes.

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Reviewed 12/6/2018
by Aaron
Cycling Enthusiast
Value Rating
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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Reviewed 9/17/2018
by Gwpelham
Cycling Enthusiast
Northern Nevada
Value Rating
Overall Rating
2 of 2 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
2 of 2 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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Reviewed 9/14/2018
by Anonymous
Nashville
Overall Rating
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 6/3/2019
by Merlin
Cycling Enthusiast
Portland, OR
Value Rating
Overall Rating
2 of 2 customers found this review helpful.
Great range of gears at a good price.

I wanted the wide gear range available in this cassette and also was glad I could get it at a decent price. I have one of these on another bike and it has lasted a very long time. This one should also last a long time. This is a very good cassette that I'll buy again if the need arises.

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Reviewed 1/21/2019
by Anonymous
Cycling Enthusiast
Value Rating
Overall Rating
ongoing maintenance

started to have poor shifting while on the trainer and realized lubrication was not the issue. Worn cassette and idler wheels were actually the culprits. Installed new cassette and idlers-voila! problems solved

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Reviewed 12/15/2018
by Anonymous
Cycling Enthusiast
NC
Value Rating
Overall Rating
Shimano, need I say more?

Fitted on my trainer seamlessly. Duplicates my road bike.

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Reviewed 11/29/2018
by Anonymous
Competitive Racer
Value Rating
Overall Rating
Fast delivery.

The cassette is lighter than the 105 version and feels like it delivers smoother shifting. Not as light as Dura Ace but more durable and more value for the money spent.

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Reviewed 11/5/2018
by Jalan
NewEnglad
Overall Rating
Reliable smooth shifts

Have these on two road bikes. Cannondale Evo Hi Mods- one with DI2 and the other with Dura Ace year. Pretty simple works well all the time with both set ups. Minor weight penalty vs DA cassette but not noticeable. Have one less adult beverage and you made up the weight difference.

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Reviewed 9/17/2018
by Anonymous
Overall Rating
Great for climbing

I had a 11x28. I talked to my coach about the climbs we were planning to do. I switched to this and was happy I did!

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Reviewed 7/12/2018
by GABiker
Competitive Racer
Atlanta, GA
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
A

Sure, DA is a little lighter, but Ultegra is a far better value.

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Reviewed 7/2/2018
by Anonymous
Overall Rating
Good product at great price

Good quality cassette - easy installation and works well with DI2 - as advertised, and as always, with BTD, ordering was worry-free, processed quickly and acquired at a great price.

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Reviewed 6/18/2018
by Bubba
Nashville
Overall Rating
Works so good

This thang just plain works. Aint much money. Works real good. Still going strong like my John Deere. Buy it if you need it.

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Reviewed 6/11/2018
by Anonymous
illinios
Overall Rating
Ultegra CS-R8000

Great cassette. Great for the ranges I bike in.

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Reviewed 5/11/2018
by CannondaleSuperSixEvoHM
Cycling Enthusiast
Seattle, WA
Value Rating
Overall Rating
2 of 2 customers found this review helpful.
Solid nice cassette.Super fast delivery!

I bought this cassette for my new wheelset. BikeTiresDirect has price match and allows you to use points earned from your prior purchases. Super fast delivery in 2 days!!

Highly recommend to anyone who is shopping bike stuffs!

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