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Shimano
Ultegra CS-6700 10-Speed Cassette

  (74 customer reviews)
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Shimano's Ultegra-level 10-speed features trickle-down technology from their 10-speed Dura-Ace 7900 group, and is a great choice for those looking to save a little cash without sacrificing performance or adding too much weight. Shimano's tight manufacturing tolerances allow for a strong and quick-shifting cassette, with revised ramps for higher performance than previous versions, even under load. Machined holes in the larger cogs help reduce weight, and the last three cogs are held together with a lightweight alloy carrier.

Compatible with Shimano and SRAM 10-speed systems. Weight: 236 grams (12/25). Available 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)

 

Weight: 236 grams

 

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 

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Great cassette for your money
rating
by Bill
Cycling Enthusiast
Florida

Use this cassette on our tandems and single road bikes

Reviewed 6/28/2019
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Happy, happy, happy, happy, happy, (one happy for each star).
rating
by Dtuning
Cycling Enthusiast
Brooklyn, NY, Florida, NY, Trumbull, CT

I have a 10-speed road bike with Shimano Ultegra components. The cassette range was 12-25. Both my daughters live in areas that are quite hilly and I started to feel that I needed a little help every once in a while. I decided to try this Shimano Ultegra cassette with a range of 12-30. Switching the cassettes was no problem. Shifting is still perfect. I did not have to increase the chain length or purchase a long cage derailleur. Everything feels great. I sometimes miss the 16 tooth cog but it is not much of an adjustment to make for my pedaling ability. I am extremely happy with this purchase.

Reviewed 5/20/2019
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part is exactly what I am looking for. and the service was good too.
rating
by Anonymous
Daily Commuter
florida

I do road bike only for training use and I love it. have the 38-11 and I like how works.

Reviewed 5/13/2019
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Works well with UDi2
rating
by Anonymous

I decided to try a slightly larger cassette at it's made climbing steep hills much easier. This cassette was easy to install and works great with my Di2 system.

Reviewed 4/25/2019
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consistently reliable Shimano performance
rating
by EPcycle15
Cycling Enthusiast
Minneapolis

used on gravel bike that is used year round in Minnesota with a variety of terrains and climates, Ultegra cassettes have never failed to deliver smooth gear changes regardless of the ice, sand, mud, snow conditions exposed to.

Reviewed 1/10/2019
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Does what it is supposed to do
rating
by Jack
florida

It is a cassette. Not much more can be said it is reliable

Reviewed 11/30/2018
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Smooth shifting when paired with SRAM Red derailleur.
rating
by Zoom
Des Moines, and throughout the U.S. and Europe

Smooth and precise shifts are the norm when used with a SRAM Red derailluer on my road or gravel bike.

Reviewed 10/22/2018
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SHIMANO ULTEGRA CS-6700 10-SPEED CASSETTE
rating
by Steve
Competitive Racer
Coral Springs, FL
1 of 1 customers found this review helpful.

Very Happy my order from Western Bike Works.... It's very important to maintain a clean cassette and to ensure the chain is not stretched out. Buy the tool and check the chain regularly. With the Shimano Ultergra cassette and a new Ultergra chain, I feel faster then ever before.

Reviewed 6/16/2017
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needed 12-30 excellent results
rating
by Tom
Cycling Enthusiast
L.I. New York

heavy compared to my preferred dura ace unit not available in 12-30

Reviewed 5/12/2017
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Works as expected
rating
by Anonymous

Great option for an extra wheelset

Reviewed 8/20/2018
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Works well.
rating
by Weekend Road Rider
Casual Cyclist
Silicon Valley, CA
1 of 3 customers found this review helpful.

When the road bike had about 16,000 miles on it, the shifting started becoming erratic. The chain would jump between gears on the rear cassette, and cleaning and carefully adjusting the rear deraileur didn't help. I replaced the cassette, the chain (which only had about 4000 miles on it), and the shifter cable, all at the same time. Now the shifting works fine, but I'll never know if it was the cassette, the chain, or the cable that fixed the problem. The cassette is well made and easy to install if you have the right cassette tool and chain whip, otherwise it would be very challenging. The next time I encounter shifting problems, I'll start by just replacing the cable before replacing the more expensive parts.

Reviewed 3/28/2017
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good value, received quickly, no problems
rating
by Michael D
Cycling Enthusiast
Denver,CO

11-28 good compromise and does not need longer derailleur cage, Ultegra quite light

Reviewed 8/6/2018
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Exact cassette i needed.
rating
by Anonymous
Cycling Enthusiast
Oklahoma
1 of 1 customers found this review helpful.

My old cassette was pretty worn so when I saw the Ultegra was on sale, I jumped on it. Great quality product at a great price....Thanks Bikeworks!

Reviewed 2/2/2017
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no problem, prompt delivery, good price and value
rating
by Michael D
Cycling Enthusiast
Denver, CO

almost 1 oz lighter than previous version, so quite light. Dura Ace is a waste of money for 99% of riders in my opinion.

chose 11-28, versatile, no need to change to long cage derailleur, I use with compact in front (road bike) and mid in front (tri bike) hilly here and I am not young.

Reviewed 7/19/2018
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works perfect, runs and shifts smoothly!
rating
by Kilorider
Competitive Racer
San Francisco, Ca

Used it for a hard TT climb where a 23 was too big, the 28t was great.

Reviewed 1/9/2017
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Thanks, Shimano for off road gearing options
rating
by EBTrails
Cycling Enthusiast
East Bay, CA

Finally gearing that is intermediate between Mountain and race. The 12-30 10 speed is perfect on my cross bike for some serious off road and touring rides. Shimano quality is also a big plus - quick shifting and durability is a given. I bought the cassette for a loaded tour and now use it to take on local MTB trails. It has made the cross bike more versatile and fun. I would recommended for adventure rides, steep road climbs and tours!

Reviewed 1/4/2017
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Great product!
rating
by Vince Tassa
Virginia

I was looking for one more lower gear for hills and this did exactly what I needed. As usual Shimano parts work great.

Reviewed 6/4/2018
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Ultegra casette
rating
by Anonymous
Texas

Cnat complain about this casette. Needed an extra gear for my getting older knees. Went up to a 30-12. Grear component group.

Reviewed 5/22/2018
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Great cassette & absolutely superb customer service!
rating
by Irv
Cycling Enthusiast
Happy Valley, Oregon
1 of 1 customers found this review helpful.

I love my Cannondale Evo that I purchased from Western about 5 years ago. With almost 20k on it, I go through cassettes and chains ... occasionally. I LOVE my Sram RED components, but for economic & convenience reasons I use a Shimano (6700) cassette, mated with a Sram chain. The marriage is good smooth shifting, quiet, efficient, and the gear options meet my needs. Western Bike Works' prices are excellent, and their service and advice are outstanding! Manager Seth is extremely knowledgeable, helpful and kind. He goes the extra mile to advise on tasks I'm capable of, and to do great work on tasks I need accomplished in the shop.

Reviewed 2/22/2018
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great HIMANO ULTEGRA CASSETTE smooth ride good price
rating
by Anonymous
Casual Cyclist
0 of 1 customers found this review helpful.

great HIMANO ULTEGRA CASSETTE smooth ride good price

Reviewed 1/18/2018
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