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Shimano CS-6700 Ultegra Bicycle Cassette (10-Speed)

4.8 4.8 out of 5 stars 1,340 ratings

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Brand SHIMANO
Color Silver
Item Weight 10.4 ounces
Case Material Aluminum
Mounting Type Braze-On Mount

About this item

  • Cog Sizes: 11 x 23 t, 11 x 28 t, 12 x 23 t, 12 x 28 t
  • Cog Material: steel
  • Freehub Type: Hyperglide
  • Carrier Material: aluminum
  • Claimed Weight: 7.4oz (209g)

Product Description

We'll tell you straight up that while we appreciate the appeal of Dura-Ace cassettes, we understand why you would choose Ultegra for your bike. Smart racers routinely save money by going with Ultegra cassettes; the money saved can go for other weight shaving measures. Shimano Ultegra CS-6700 Cassettes are lighter than their 6600 brothers, doing a nice job of closing the gap on Dura-Ace. The tallest cogs are riveted onto an aluminum carrier for weight savings, and they're more gentle on aluminum cassette bodies.

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Customer reviews

4.8 out of 5 stars
4.8 out of 5
1,340 global ratings

Customers say

Customers like the quality, performance, and weight of the cassette. For example, they mention that it shifts well, it's great value for money, and it works great without any issues. Customers are also impresseded with the construction, saying that it'll last a long time. Overall, customers are happy with their purchase and recommend it to others.

AI-generated from the text of customer reviews

128 customers mention128 positive0 negative

Customers are satisfied with the quality of the bicycle. They mention that the construction is the best on the market for this price, it's extremely reliable, and provides any gear ratios they need. Some say that the bike group sets are long-lasting and reliable. Overall, customers are happy with their purchase and recommend it to others.

"Wheel and Sprocket sells high quality bicycle parts at very affordable prices...." Read more

"I continue to use my older bike group sets as they are extremely reliable & give me any gear ratios I need." Read more

"Good quality as expected." Read more

"...This Ultegra Cassette is fantastic. If you live where there are hills (10-15 degrees and up), you'll love this cassette...." Read more

58 customers mention55 positive3 negative

Customers appreciate the value of the bike. They say it's a great value for the money, an inexpensive upgrade, and has the best cost performance ratio out there. Customers also mention that it has a good quality/ price balance.

"...one example of the large inventory - with prompt shipping and great return policy. This is a great source for bicycle parts...." Read more

"...its a 105 bike and you are super excited to get a bike with great kit for a great price...." Read more

"...it was slightly more than I like to pay for a cassette, it was worth every penny!..." Read more

"Ultegra is a good bet and not a budget buster. Buy from this seller !" Read more

55 customers mention55 positive0 negative

Customers are satisfied with the performance of the cassette. They mention that it works great without any issues, it shifts crisply, and there are no problems with installation. The link works fine and the online instructions are easy to follow. The cassette works great with a compact crankset and has very little weight penalty.

"I use this cassette on my GT Road bike with an Ultegra chain and it works great...." Read more

"...I made a slight adjustment to the B adjuster. Works great." Read more

"...super nice, lighter than the Sram I took off, crisp shifting, no issues whatsoever, will buy Shimano again, and again." Read more

"...It is very light, and has been working great without any issues." Read more

41 customers mention41 positive0 negative

Customers are satisfied with the shifting of the bicycle. They mention that it shifts smoothly, quickly, and quietly. Some say that the shifting has worked well with their SRAM drivetrain. Overall, most are happy with their purchase and recommend it to others.

"...I installed the spacer and it did not. The shifting is much smoother than my existing (4,000 mile) cassette...." Read more

"...rides well, happy with the purchase!" Read more

"...No issue with chain length or being too short. Smooth shifts from top to bottom...." Read more

"...Big improvement! Back to smooth shifting...." Read more

19 customers mention19 positive0 negative

Customers find the installation of the gearing easy. They mention it takes a few minutes to put together on their freewheel hub, and the instructions provided by Shimano are easy to follow.

"Nice & Smooth, easy to install. Kicking butt in the flat lands and ocassional unsuspecting rises in Florida roadways...." Read more

"Cassette was in stock and shipped quickly. Installed with no issues and performs as expected." Read more

"...That said the link works fine and the online instructions are easy to locate." Read more

"...I saw the gears all apart in the package but the instructions Shimano gives are easy to follow and if you keep your old cassette nearby you can see..." Read more

17 customers mention17 positive0 negative

Customers are satisfied with the weight of the product. They mention that it is very light, the weight difference is negligible, and it seems to be the perfect balance of weight and quality. They also say that the metal is lighter and stronger than what they had on their bike.

"...The Ultegra series seems to me the perfect balance of weight and quality...." Read more

"...super nice, lighter than the Sram I took off, crisp shifting, no issues whatsoever, will buy Shimano again, and again." Read more

"...It is very light, and has been working great without any issues." Read more

"...The weight difference is negligible and it actually shifts better IMO...." Read more

13 customers mention13 positive0 negative

Customers are satisfied with the fit of the bike. They mention that it fits perfectly, and installs easily. They appreciate the tight gearing, which is great for Florida. The close ratio gearing is also great for flat trails.

"12-23T It fit perfect & i love the close ratio gearing for the flat trails...." Read more

"Fits perfectly in place of the old Shimano 10 speed cassette. The larger ring now gives me new life on the hills!" Read more

"...using the ultegra 6700 cassette with 11/25T. the 11/28T cassette fits perfectly and I had to make only minor adjustments to the rear derailleur..." Read more

"...Additionally, the 11-23 combination is a much closer gear ratio, so you don't get those huge drops/gains in RPM in the larger gears when you are up/..." Read more

So far, I’m luvin it…👻
5 Stars
So far, I’m luvin it…👻
Feels a lot smoother than the old 105 11-28 Cassette… (ie recently just overhauled the old Shimano 105 mechanical drivetrain with new all new Shimano Ultegra cassette & chain as needed per my lbs mechanic’s recommendations and after review with a chainlink stretch device.) So far it’s great combo’d with a 50/39 chainring on rolling hills with elevation changes of 400-1000ft @ 6%-25%+ grade at some locations which the upside is that I’m using almost all the gears more efficient and pacing a lot more efficiently as well, you will lose top-speed so go ahead and forget bombing hills, once you’re like above 45mph you’ll just spin-out…😂… So far so good… Enjoy yo ride! 🤟🏾
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Top reviews from other countries

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Miguel Angel Davila
5.0 out of 5 stars Calidad Shimano original
Reviewed in Mexico on January 17, 2024
Size: 12/30TVerified Purchase
M. Siewert
5.0 out of 5 stars good match
Reviewed in Canada on March 2, 2023
Size: 12/25TVerified Purchase
Amazon Customer
5.0 out of 5 stars No issues after 5000km of use.
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Horst Fischer
5.0 out of 5 stars Bei Shimano passt immer alles.
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Clyde Taeger
5.0 out of 5 stars 3 words..:Great, Great, Great!!!
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