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Shimano
Ultegra CS-6700 10-Speed Cassette

  (56 customer reviews)
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MSRP $69.99
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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

 

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 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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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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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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Works well.
rating
by Weekend Road Rider
Casual Cyclist
Silicon Valley, CA
1 of 2 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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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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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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Works great even 12-30 seize with standard derailer.
rating
by Tom R
Cycling Enthusiast
LI NY road cycle year around

Cost effective though heavier than dura ace .My perfered seize not available in dura ace (12-30) if it was I would buy dura ace despite the cost save the weight inportant to me.

Reviewed 11/2/2017
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smooth operation and good sound level
rating
by Buckeye
Daily Commuter
Columbus
0 of 1 customers found this review helpful.

replaced original cassette and chain for improved performance

Reviewed 10/16/2017
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Really improved my hill climbing
rating
by Anonymous

Gave me a few more gears to help her up those long climbs.

Reviewed 9/29/2017
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6700 is good stuff
rating
by DBGRVA
Cycling Enthusiast
Richmond, VA

Shimano Ultegra 6700 is a great product and hope they keep making this line of cassettes for a while. If you keep it regularly clean you can get 4000 or more miles on it (depends on how hard you ride too).

Reviewed 9/14/2017
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Shimano Ultergra CS-6700
rating
by David
Cycling Enthusiast
Wichita Falls, TX

Very crisp shifting and good cassette life

Reviewed 8/5/2017
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Ultegra is always there for you
rating
by Seattlebiking
Cycling Enthusiast
Normandy Park, Wa

Was using a 28 and needed a little more. 30 seems to be the ticket.

Reviewed 5/30/2017
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Great as usual
rating
by David S.
Katy, Tx

Great shifting in both directions. Got this one to help on the hills for training rides. I would not expect anything other than great performance especially at a sale price. Ultegra cassettes are my go to and have never been disappointed.

Reviewed 4/19/2017
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I don't notice the cassette which means it's doing its job well
rating
by YG400
Competitive Racer
Portland, OR

Performs to spec, looks good when cleaned. Bought it since it comes in a 12-30 option. Otherwise, I'd get the 105 version.

Reviewed 4/13/2017
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Works like a charm
rating
by Jarry
Cycling Enthusiast
Minnesota

I bought this cassette for a new wheel set. It was easy to install and works great!

Reviewed 4/3/2017
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Great Quality for very little money!
rating
by Scott
Cycling Enthusiast
Laconia, NH
2 of 2 customers found this review helpful.

I've bought a couple of these now and they are pretty hard to kill. I couldn't justify replacing my cassette with the higher end ones that I seemed to kill very quickly. I put these on and honestly I don't notice any difference. They shift very well and have had pretty good longevity so far. I also have one on my cross rig and it has held up easily to a season of mud, dust, muck, and ice.

Reviewed 1/3/2015
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