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Shimano Ultegra 6800 Cassette
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Item # SHI0660

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  • Gray, 11x23 ($52.55)
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Item # SHI0660


Move up from 10.

Shimano knew that the Ultegra 6800 cassette would reside as the heart of the new 11-speed system, which is why it devoted considerable time on a feature known as 'rider-tuning.' What this means is that you receive an updated range of useable gearing options with the advent of the 11-speed design.

It also means that, even if you're running Dura-Ace, you can pop on an Ultegra cassette and no one will ever know. Except you. But once all the blood has abandoned your head for your legs, you won't care—and the fact that it's all steel instead of partially titanium means it'll last longer, too. There is the issue of weight gain compared to Dura-Ace, but since the cassette inhabits the center of the wheel, it plays no role in the inertial mass at the wheel's diameter, so it won't hamper spin-up.

Cassette options with Ultegra 6800 now range from 11-23t to its climber-friendly 11-32t. The additional cog in the back means the new cassette runs straight through for a bit longer, which generally means the addition of an 18T cog over the 10-speed. This smoother run of gearing is most noticeable while spinning in the top end of the block, allowing more consistency and control over your cadence compared to 10-speed cassettes.

Shimano Ultegra CS-6800 Cassette is slightly lighter than its 6700 brother, and it does a nice job of closing the gap on Dura-Ace 9000. The tallest cogs are riveted onto an aluminum carrier for weight savings, and they're gentler on aluminum cassette bodies. Shimano improved its manufacturing quality too; now they can make the ramps stronger because they can build to tighter tolerances. And the ramps themselves have been revised for faster shifting.

  • The cassette of choice for self-sponsored racers
  • Reliable, durable steel outlasts more expensive Ti options
  • Precisely machined ramps for Shimano 11-speed shifting
  • Shimano's Ultegra 6800 drivetrain may be the best value for racing in the industry

Tech Specs

Cog Sizes:
11 x 23 t, 11 x 25 t, 11 x 28 t, 11 x 32 t, 12 x 32 t
Cog Material:
Carrier Material:
Recommended Use:
road cycling
Manufacturer Warranty:
2 years

Reviews & Community


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  • Familiarity: I've put it through the wringer

Love Ultegra. Identical to Dura Ace as far as performance goes but it forgoes the ti cogs so it lasts much longer albeit slightly heavier. I use the 11-32t option on my CX 1x bike and the shifting is fantastic and if you change out the chain a few times a season, the cassette will last a very long time.

Avg. ride time: 3h 34m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

All-Around great

  • Familiarity: I've put it through the wringer

Reliable, dependable, long lasting. Ultegra is like a Toyota Camry, it isn't flashy, but it works every time. Light enough, and cost effective for any build, hard to overlook it for a performance oriented road build, especially if you are on a budget. Great cassette for the money. Hard to beat.

Wonderful castette

  • Familiarity: I've put it through the wringer

All Ultregra components are great products in addition to price-wise. No need to say more.

Can't go wrong.

  • Familiarity: I've put it through the wringer

Can't go wrong with an Ultegra cassette; only weighs 15g more than a comparable Dura Ace cassette, but is a quarter the cost. Sorry; I can't justify $150 for 15g savings, except maybe on race-specific carbon climbing wheels.

Gets the job done

  • Familiarity: I've put it through the wringer

As far as cassettes go, there isn't a lot to review but the Ultegra cassette is a solid. lightweight and durable choice for all riders. Not quite as lightweight as the Dura ace version but the ultegra when paired with a new chain offers for buttery smooth shifters and a killer ride. I meticulously clean my chain and cassette and they have lasted me about a year usually.

Always In Need

  • Familiarity: I've put it through the wringer

It's easier to have more than one cassette, as to not have to constantly change them between wheels. Ultegra level cassettes don't have the lightweight pedigree of Dura Ace, but pricing vs. weight/performance is good enough. Durable and easy to maintain.

Works great!

  • Familiarity: I've put it through the wringer

I use an 11-28 int he mountains around Salt Lake City. This cassette handles the abuse. It is reliable and easy to maintain.

Works Everytime

  • Familiarity: I've put it through the wringer

Have used used these on multiple bikes with the same conclusion- works great every time. A good alternative to Dura Ace, as these are consumable items and a better value with good weight comparisons. Currently have is installed on my Dura Ace Di2 and integrates perfectly.

Will the 11-32 work with my Shimano Ultegra Di2, 6870, 11-speed rear derailleur, or do I need one of those extended derailleurs like you used to need for the 11-32?

That depends on the cage length of your current derailleur. The Mid cage derailleur will accommodate up to a 32t cog.

Mid-cage derailleur is required for 11-32, but the 6870 Di2 rear derailleur is available in a mid-cage option, just like the 6800 mechanical rear derailleur.


  • Familiarity: I've put it through the wringer

Shimano Ultegra is just a great all around group. I have seen it equipped on professional team bikes (smaller US teams, but they are getting paid to ride) If I had to make a choice between running Dura-Ace and mediocre wheels, or running Ultegra and amazing wheels, I would run Ultegra for sure.

With the Cassette, I opted for the 11-32 cassette for the mountainous terrain found here in Utah. I love spending time in the hills, but I am by no means a great climber. For the 11-32 cassette you do need to run Shimano's mid cage rear derailleur. It is hard to beat the reliability, quality, and acceptable weights that are offered by Shimano's Ultegra group.

Great for Road or Cross

  • Familiarity: I've put it through the wringer

I use the Ultegra 6800 cassettes on my road and cyclocross bikes and I've been very happy with the shifting performance and durability. Even during some muddy CX races my bike was shifting fine.

Shimano Works

  • Familiarity: I've used it several times

Building up a new bike and chose Shimano because of my previous experience with how well these parts work.

Carves the Road

  • Familiarity: I've used it several times

I use this cassette on my mechanical Dura Ace equipped bike. Using it is definitely a more cost-effective alternative to training on (and wearing out) Dura Ace cassettes, at 3x the price. I just wish Shimano made the Ultegra in a 12-28 option.

A classic

  • Familiarity: I've put it through the wringer

Just moved to Utah from Indiana and I immediately swapped out my 11x25 with a short cage for the 11x32 with a long cage on my gravel bike. I can now make it up all of the steep gravel pitches in the mountains with enough energy to look around and enjoy the views.

This cassette is the best on the market for the price and weight, not to mention it's durability. As a recent college grad trying to buy new bike parts can be expensive! At least with this cassette it didn't break my bank account and I know I will get my moneys worth.

All around Cassette

  • Familiarity: I've put it through the wringer

I pair this with my 53-39 and that's all I needed. You can go up very hill and mountain and you can speed downhill too.

Avg. ride time: 0m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


  • Familiarity: I've put it through the wringer

Smooth, light, and long lasting. What more could you want?


  • Familiarity: I've put it through the wringer

I bought the 6800 package, cassette, derailleur and chain. The gearing spread combined with a compact 50-34 is wonderful, especially if you live in mountainous country. Shifting is flawless and smooth. 6800 is more durable and cost effective then the Dura Ace cassette.

Avg. ride time: 1h 6m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

11-32 Climbs like a Goat

  • Familiarity: I've put it through the wringer

I switched out my 11-28 and short cage for the 11-32 and the long cage after running out of gears on too many climbs. Making the switch was one of the best things I've done to my bike, as I've never had problems on steeper climbs. Second only to losing weight, this is one of the best things to do to become a better climber.

More cost effective than dura ace

    I have a dura ace cassette on my race wheels but end up training on my ultegra cassettes. At the rate that i go through cassettes, this is far more cost effective. Its a little heavier for sure, but i'd be lying if i told you that i could tell that the dura ace cassette shifts better.