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

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Mfg PartNum:
(115 customer reviews)
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$74.99
MSRP: $74.99
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Description

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)

Returns: Openbox, B-Stock, and Closeout products can be returned within 60 days for store credit.

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%.

Specifications

 

Weight: 236 grams

 

Cassette Use: Road 

 

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 

 

Drivetrain Speed: 10-Speed 

11/25 Tooth

Mfg PartNum: ICS670010125 

11/28 Tooth

Mfg PartNum: ICS670010128 

12/25 Tooth

Mfg PartNum: ICS670010225 

12/30 Tooth

Mfg PartNum: ICS670010230 

Reviews

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5 stars
4 stars
3 stars
2 stars
1 stars
(96)
(19)
(0)
(0)
(0)
(83%)
(17%)
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A great product.
by Anonymous

Shifting well with my SRAM red.

Reviewed 10/24/2024
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A great product.
by Anonymous

Shifting well with my SRAM red.

Reviewed 9/26/2024
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Outstanding cassette at a great price!
by Steve
Daily Commuter
Murrieta, Ca.
3 of 3 customers found this review helpful.

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!

Reviewed 7/1/2018
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The Ultimate road cassette
by veloptuous
Cycling Enthusiast
Rocky Mountains
1 of 1 customers found this review helpful.

I have been using the Ultegra cassettes for years. You can spend much more on a cassette but you won't get a better one. These work as well as anything and just last and last and last. Dura-Ace might save a gram or two and work the same, but it won't give you the long service life the Ultegra does. If you want a cassette that you can install and more or less forget about all while enjoying beautiful shifts day in and day out - this is it.

Reviewed 7/13/2022
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Smooth shifting, good value
by Anonymous
Cycling Enthusiast
Phoenix AZ
3 of 3 customers found this review helpful.

I needed to replace my 10-speed Dura-ace cassette because of worn cogs and was originally looking for a Dura-ace 10-speed cassette. Not only were they difficult to find, but the few I found were extremely expensive! I "settled" for this Ultegra cassette and I am very glad I did. Not only is it waaay less expensive, but the shifting is just as clean and crisp as my Dura-ace cassette. Even though I know there is a weight difference, I really can't feel it in any way. I have it paired with a SRAM hollow-pin chain and the combination works extremely well. I would definitely recommend this cassette.

Reviewed 5/24/2022
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Great cassette
by ChazMan
Cycling Enthusiast
Metro Detroit
2 of 2 customers found this review helpful.

I have the 12-23 and have probably 10,000 miles on it, rarely going 150 miles or more without a thorough cleaning. Works great! I like the 12-23 because I can stay in my big chainring for all but the toughest climbs on my usual routes, and the middle few gears are only 1 tooth difference so I have that nice stair-step up and down the gears so I'm always in a comfortable cadence in nearly all riding conditions. Never feel like I'm in a gear too low or high.

Reviewed 3/2/2022
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Great 10 speed Cassette
by biggcycles
Cycling Enthusiast
Buffalo, NY

Great sale price for my 2007 steel Masi.

Reviewed 4/8/2024
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Great upgrade for 10 speed road bikes
by Mac
Cycling Enthusiast
Portland, OR

So fantastic having such a great shop close by. Thanks again.

Reviewed 8/10/2021
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Great cogset
by Anonymous
Sacramento CA.

Works perfect for me , new cogset new chain flawless shiffting .

Reviewed 7/18/2023
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Can�t go wrong with shimano ultra Ra!
by EdBell
Sonoma

I was struggling with hills using the 28 tooth cassette I had so I moved up to the 30 which gave me what I needed. Nothing shimano has ever let me down

Reviewed 6/12/2023
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needed 12-30 excellent results
by Tom
Cycling Enthusiast
L.I. New York
1 of 1 customers found this review helpful.

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

Reviewed 5/12/2017
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Works well.
by Weekend Road Rider
Casual Cyclist
Silicon Valley, CA
3 of 5 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.
by Anonymous
Cycling Enthusiast
Oklahoma
3 of 3 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!
by Kilorider
Competitive Racer
San Francisco, Ca
1 of 1 customers found this review helpful.

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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Good Group Set
by Bob Walsh
Buffalo,NY
2 of 4 customers found this review helpful.

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.

Reviewed 1/5/2017
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Thanks, Shimano for off road gearing options
by EBTrails
Cycling Enthusiast
East Bay, CA
1 of 1 customers found this review helpful.

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 value
by twain
Competitive Racer
redwood city
2 of 4 customers found this review helpful.

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.

Reviewed 12/21/2016
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10 speed cassette
by Rick
Seattle

Great to be able to still get this for my old 10 speed drivetrain on my "bad weather bike" fast turnaround as usual. Glad Portland and Seattle are close!

Reviewed 3/27/2023
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Shimano drive trains deserve Shimano replacement parts
by Anonymous
Cycling Enthusiast
Shreveport, LA
1 of 1 customers found this review helpful.

Shimano parts, especially Ultegra, are a bargin when you factor in the quality in all aspects and the durability when maintianed.

Reviewed 8/12/2021
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It. Just. Works.
by Anonymous
Cycling Enthusiast
Arvada, CO

Easy to install. Works just as expected, with no shifting issues whatsoever.

Reviewed 8/9/2021
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