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Shimano Ultegra CS-6700 10-Speed Cassette 11/23 Tooth
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Shimano Ultegra CS-6700 10-Speed Cassette

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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.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

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 

Mfg PartNum: ICS670010230 

11/25 Tooth

Mfg PartNum: ICS670010125 

11/28 Tooth

Mfg PartNum: ICS670010128 

12/25 Tooth

Mfg PartNum: ICS670010225 

12/30 Tooth

Mfg PartNum: ICS670010230 

Ordered by Most Relevant First
5 stars
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(86)
(19)
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Reviewed 7/29/2021
by Anonymous
Value Rating
Overall Rating
great gears for heavy cyclist

easy shifting, gear ration great for mountains and hills. easy to find right gear for a heavy rider.

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Reviewed 9/27/2019
by #1
Cycling Enthusiast
sf bay area
Value Rating
Overall Rating
2 of 2 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 7/1/2018
by Steve
Daily Commuter
Murrieta, Ca.
Value Rating
Overall Rating
2 of 2 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 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 5/13/2021
by Anonymous
Daily Commuter
Seattle
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
If there is a better 10-speed Ultegra cassette, I am not aware of it!

So many teeth.

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Reviewed 4/15/2021
by Mike
Chicago
Overall Rating
1 of 1 customers found this review helpful.
Great Cassettes

As long as your derailleur is correctly adjusted this will shift well. Sharp and clean shifts. I used it with Dura-ace derailleur

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Reviewed 11/16/2020
by DuckFan bike rider
Cycling Enthusiast
Eugene, OR
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Good durable product

Replaced a well worn Shimano cassette and chain at the same time. Both new components work well together.

These parts were used to rebuild an old (1982) steel frame bike. Nice improvement!

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Reviewed 8/24/2020
by Rich
Cycling Enthusiast
Madison, WI
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1 of 2 customers found this review helpful.
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 6/20/2020
by Anonymous
Cycling Enthusiast
the mts. between Scappoose and Vernonia, or.
Value Rating
Overall Rating
3 of 3 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 1/4/2021
by Anonymous
Cycling Enthusiast
Trent Lakes, Ontario ,Canada
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0 of 1 customers found this review helpful.
It is a nice Shimano cassette.

II have not used the new cassette because of weather restrictions, ICE and SNOW

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Reviewed 12/10/2020
by Anonymous
Canada
Overall Rating
1 of 1 customers found this review helpful.
Nice cassette

Arrived as advertised,can't wait to try in on my bike in the spring.

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Reviewed 12/4/2020
by jayne
Cycling Enthusiast
Tehachapi, CA
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
The cassette is fine. I don't have much to compare it with.

The cassette is fine. I think I should have gone with more gears. :)

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Reviewed 11/9/2020
by Big rider
Galt
Overall Rating
1 of 1 customers found this review helpful.
Great cogset

Works great ,no problem shifting last for many miles .

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Reviewed 11/5/2020
by Alon
Huntsville, AL
Overall Rating
1 of 1 customers found this review helpful.
Reliable 10 sp.

Solid cassette. Smooth and reliable.

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Reviewed 11/5/2020
by Alon
Huntsville, AL
Overall Rating
1 of 1 customers found this review helpful.
Reliable 10 sp.

Solid cassette. Smooth and reliable.

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Reviewed 11/7/2020
by David
Cycling Enthusiast
NORTH OF BOSTON
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
good price fast shipping

Very good price and fast shippings , cassette is exactly as described

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Reviewed 1/30/2020
by Tim
Somis
Overall Rating
2 of 2 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 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 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 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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