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Shimano Ultegra CS-6700 10-Speed Cassette

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$70.99
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Shimano's 10-speed Ultegra cassette provides many of the features of its 10-speed Dura-Ace 7900 counterpart, offering improved shifting under load and a reduced-weight design.

  • Light weight alloy carrier holds the last three cogs
  • Crisper tooth profiles for exceptional shifting
  • Larger cogs feature machined holes to reduce weight
  • 236g (12/25)
  • Compatible with Shimano and SRAM 10-speed systems

Gearing options:

  • 11/23 Tooth (11, 12, 13, 14, 15, 16, 17, 19, 21, 23)
  • 11/25 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 23, 25)
  • 11/28 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 24, 28)
  • 12/23 Tooth (12, 13, 14, 15, 16, 17, 18, 19, 21, 23)
  • 12/25 Tooth (12, 13, 14, 15, 16, 17, 19, 21, 23, 25)
  • 12/30 Tooth (12, 13, 14, 15, 17, 19, 21, 24, 27, 30)

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.

Weight: 236 grams

Freehub Compatibility: Shimano/SRAM 8/9/10 

Freehub Compatibility: Shimano 10 Speed Only 

Group Compatibility: Shimano 10 Speed 

Group Compatibility: SRAM 10 Speed 

Cassette Type: Shimano 10 

11/25 Tooth

Mfg PartNum: ICS670010125 

11/28 Tooth

Mfg PartNum: ICS670010128 

12/25 Tooth

Mfg PartNum: ICS670010225 

12/30 Tooth

Mfg PartNum: ICS670010230 

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Reviewed 8/24/2020
by Rich
Cycling Enthusiast
Madison, WI
Value Rating
Overall Rating
Easy fit

This was an upgrade to make the hills a little easier. Not surprisingly, it was an easy fit to replace the existing Shimano 10-speed cassette. The 30 tooth cog was one size larger than spec'ed by Shimano for my derailleur, but it shifts well and didn't require a modification of the chain. Easy and inexpensive upgrade.

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Reviewed 9/27/2019
by #1
Cycling Enthusiast
sf bay area
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
dirty thirty

Well folks, the time comes when you are looking at 60 years in the rear view mirror and realize you need a little more spin for those steep skyline hills. My solution, the shimano ultegra 10 speed cassette with a thirty tooth cog. yep for now this old guy can still spin up those steep hills and enjoy it! Where you say can I get one? Well greybeard, at Bike Tires Direct of course! I have bought my tools of the road from these guys for many years and never once had a problem, shipping is fast and the price spot on. Disclaimer I do not work for these guys, really. I Just appreciate them. Have a great ride and I will see you out there!

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Reviewed 8/26/2020
by Anonymous
Overall Rating
solid quality, quick shipping

modified from 11-28 to this cassette to get me a little help on the hills. short cage 105 rear derailleur still works fine...

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Reviewed 7/1/2018
by Steve
Daily Commuter
Murrieta, Ca.
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Outstanding cassette at a great price!

I ordered this cassette to install on a wheel I also ordered. It went on easily and now have over 500 miles on it. Great product at a great price!

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Reviewed 6/20/2020
by Anonymous
Cycling Enthusiast
the mts. between Scappoose and Vernonia, or.
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
easy to change out, shifts well

If I had paid more attention to my worn out chain, I wouldn't have had to change the cassette yet. It works, shifts good, no problems

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Reviewed 2/23/2017
by Steve S.
Cycling Enthusiast
Seattle, WA
Value Rating
Overall Rating
4 of 6 customers found this review helpful.
First time replacing a cassette.

First time to ever change out a cassette, wow a very easy process. After replacing the cassette check out shifting with your chain and your back on the road again. 10 minutes max to replace a cassette. Faster than replacing a flat tire! Save few bucks, do it yourself. My old Shimano cassette a little over 8,000 miles still working but thought with a great price at Bike Tires Direct why not replace the cassette. Shimano TOP quality products along with Bike Tires Direct, my go to online bike store.

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Reviewed 1/30/2020
by Tim
Somis
Overall Rating
1 of 1 customers found this review helpful.
Great Deal on loving life on 2 wheels!!

I've used these for years! Nothing better out there!!

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Reviewed 12/12/2019
by siranthony2000
Cycling Enthusiast
Ontario, Canada
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
What is there to say, it's a shimano ultegra

Like all race ready Shimano components, they work well flawlessly. This cassette is no exception. I purchased it to replace the same one I've had for the last six years. I put the old one on my second wheel.

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Reviewed 3/24/2020
by Juan C Adorno
Cycling Enthusiast
Jacksonville, FL
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
It is great for mostly flat roads.

It is great for my Jacksonville FL flat roads

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Reviewed 7/15/2019
by Biker58
Casual Cyclist
Pittsburgh PA
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Makes climbing easier.

The 12-30 gear range allows this retiree to be successful on 15% grades. I'm a sprinter not a climber, but when you live in Western Pennsylvania there aren't many flat roads. Search for the Dirty Dozen bike ride and see some of our more exquisite hills.

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Reviewed 7/1/2019
by Anonymous
Overall Rating
1 of 1 customers found this review helpful.
Worked as was designed

Cassette works great

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Reviewed 7/27/2017
by Steve S
Cycling Enthusiast
Seattle, WA
Value Rating
Overall Rating
1 of 2 customers found this review helpful.
Very Happy Customer

Replaced worn out Shimano 10 speed cassette with a new Shimano 6700 10 speed cassette, works great at a reasonable price, timely delivery, and I am a very happy customer with Bike tires direct.

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Reviewed 5/20/2019
by Jon B
Cycling Enthusiast
OKC,OK
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
A great upgrade over 105

A superb upgrade over the heavier 105 that came on my TREK. Approx. 100 grams lighter and super smooth.

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Reviewed 1/5/2017
by Bob Walsh
Buffalo,NY
Overall Rating
1 of 3 customers found this review helpful.
Good Group Set

I find Ultegra cassettes bullet proof and a good value for my training bike. They are relatively inexpensive and last a long time if you take care of them. Highly recommended.

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Reviewed 4/1/2019
by Jbodolai
Overall Rating
1 of 1 customers found this review helpful.
High quality, not too expensive!!

I dont have to tell you that shimano makes some of the best bike parts on the planet. This particular cassette is a mid level product that performs like a top of the line product. Highly recommend ultegra parts.

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Reviewed 4/5/2019
by Anonymous
Great state of Louisiana
Overall Rating
1 of 1 customers found this review helpful.
Works Great-no shifting problems

Making a decision on the internet on what store to order bike parts can be difficult. Friend of mine told me about this company. Will order all my parts from them. Customer service is great, shipping was on time. Good prices and selections of cassettes.

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Reviewed 12/21/2016
by twain
Competitive Racer
redwood city
Value Rating
Overall Rating
1 of 3 customers found this review helpful.
Great value

I am still running 10 speed. Needed a new cassette for a new Hed wheel. For $XX, these are incredible deal! The finish holds up really well, too. Seems to be more durable than Dura Ace for a lot less $ and just a little more weight.

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Reviewed 10/11/2018
by Anonymous
Cycling Enthusiast
Sacramento
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Happy with purchase

I find using all Shimano drivetrain parts results in a well-engineered system and smooth shifting. This cassette works very well with the rest of my bike.

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Reviewed 9/17/2018
by Anonymous
Overall Rating
2 of 2 customers found this review helpful.
Excellent cassettes - ORiginal replacement

Replacement of my original cassette with a larger 30 tooth cog. Excellent fit and quality.

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Reviewed 6/26/2015
by Diesel
Cycling Enthusiast
Portsmouth, NH
Value Rating
Overall Rating
3 of 5 customers found this review helpful.
Well made, crisp shifting

Good product by Shimano. Still think price could be a little lower since they are mass produced. I do like the quality control though. Decent packaging. Product could come with an extra bottom spacer.

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